diff options
author | marha <marha@users.sourceforge.net> | 2010-05-16 20:50:58 +0000 |
---|---|---|
committer | marha <marha@users.sourceforge.net> | 2010-05-16 20:50:58 +0000 |
commit | 1c94119ae26b94a60bb2c2b33494ed43c3b8a52f (patch) | |
tree | cfe0c736c95314edac7d9f1065be9c13026ed0c1 /xorg-server/hw/kdrive/fbdev | |
parent | 6b29aa4559aeb6f795caee047561654bfa0a1954 (diff) | |
download | vcxsrv-1c94119ae26b94a60bb2c2b33494ed43c3b8a52f.tar.gz vcxsrv-1c94119ae26b94a60bb2c2b33494ed43c3b8a52f.tar.bz2 vcxsrv-1c94119ae26b94a60bb2c2b33494ed43c3b8a52f.zip |
svn merge -r588:HEAD ^/branches/released .
Diffstat (limited to 'xorg-server/hw/kdrive/fbdev')
-rw-r--r-- | xorg-server/hw/kdrive/fbdev/fbdev.c | 1652 |
1 files changed, 826 insertions, 826 deletions
diff --git a/xorg-server/hw/kdrive/fbdev/fbdev.c b/xorg-server/hw/kdrive/fbdev/fbdev.c index d4604ad29..b127ab89b 100644 --- a/xorg-server/hw/kdrive/fbdev/fbdev.c +++ b/xorg-server/hw/kdrive/fbdev/fbdev.c @@ -1,826 +1,826 @@ -/* - * Copyright � 1999 Keith Packard - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation, and that the name of Keith Packard not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Keith Packard makes no - * representations about the suitability of this software for any purpose. It - * is provided "as is" without express or implied warranty. - * - * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR - * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, - * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER - * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR - * PERFORMANCE OF THIS SOFTWARE. - */ - -#ifdef HAVE_CONFIG_H -#include <kdrive-config.h> -#endif -#include "fbdev.h" -#include <sys/ioctl.h> - -#include <errno.h> - -extern int KdTsPhyScreen; - -char *fbdevDevicePath = NULL; - -static Bool -fbdevInitialize (KdCardInfo *card, FbdevPriv *priv) -{ - unsigned long off; - - if (fbdevDevicePath == NULL) - fbdevDevicePath = "/dev/fb0"; - - if ((priv->fd = open(fbdevDevicePath, O_RDWR)) < 0) - { - ErrorF("Error opening framebuffer %s: %s\n", - fbdevDevicePath, strerror(errno)); - return FALSE; - } - - /* quiet valgrind */ - memset (&priv->fix, '\0', sizeof (priv->fix)); - if (ioctl(priv->fd, FBIOGET_FSCREENINFO, &priv->fix) < 0) { - perror("Error with /dev/fb ioctl FIOGET_FSCREENINFO"); - close (priv->fd); - return FALSE; - } - /* quiet valgrind */ - memset (&priv->var, '\0', sizeof (priv->var)); - if (ioctl(priv->fd, FBIOGET_VSCREENINFO, &priv->var) < 0) { - perror("Error with /dev/fb ioctl FIOGET_VSCREENINFO"); - close (priv->fd); - return FALSE; - } - - priv->fb_base = (char *) mmap ((caddr_t) NULL, - priv->fix.smem_len, - PROT_READ|PROT_WRITE, - MAP_SHARED, - priv->fd, 0); - - if (priv->fb_base == (char *)-1) - { - perror("ERROR: mmap framebuffer fails!"); - close (priv->fd); - return FALSE; - } - off = (unsigned long) priv->fix.smem_start % (unsigned long) getpagesize(); - priv->fb = priv->fb_base + off; - return TRUE; -} - -Bool -fbdevCardInit (KdCardInfo *card) -{ - FbdevPriv *priv; - - priv = (FbdevPriv *) xalloc (sizeof (FbdevPriv)); - if (!priv) - return FALSE; - - if (!fbdevInitialize (card, priv)) - { - xfree (priv); - return FALSE; - } - card->driver = priv; - - return TRUE; -} - -static Pixel -fbdevMakeContig (Pixel orig, Pixel others) -{ - Pixel low; - - low = lowbit (orig) >> 1; - while (low && (others & low) == 0) - { - orig |= low; - low >>= 1; - } - return orig; -} - -static Bool -fbdevModeSupported (KdScreenInfo *screen, - const KdMonitorTiming *t) -{ - return TRUE; -} - -static void -fbdevConvertMonitorTiming (const KdMonitorTiming *t, struct fb_var_screeninfo *var) -{ - memset (var, 0, sizeof (struct fb_var_screeninfo)); - - var->xres = t->horizontal; - var->yres = t->vertical; - var->xres_virtual = t->horizontal; - var->yres_virtual = t->vertical; - var->xoffset = 0; - var->yoffset = 0; - var->pixclock = t->clock ? 1000000000 / t->clock : 0; - var->left_margin = t->hbp; - var->right_margin = t->hfp; - var->upper_margin = t->vbp; - var->lower_margin = t->vfp; - var->hsync_len = t->hblank - t->hfp - t->hbp; - var->vsync_len = t->vblank - t->vfp - t->vbp; - - var->sync = 0; - var->vmode = 0; - - if (t->hpol == KdSyncPositive) - var->sync |= FB_SYNC_HOR_HIGH_ACT; - if (t->vpol == KdSyncPositive) - var->sync |= FB_SYNC_VERT_HIGH_ACT; -} - -static Bool -fbdevScreenInitialize (KdScreenInfo *screen, FbdevScrPriv *scrpriv) -{ - FbdevPriv *priv = screen->card->driver; - Pixel allbits; - int depth; - Bool gray; - struct fb_var_screeninfo var; - const KdMonitorTiming *t; - int k; - - k = ioctl (priv->fd, FBIOGET_VSCREENINFO, &var); - - if (!screen->width || !screen->height) - { - if (k >= 0) - { - screen->width = var.xres; - screen->height = var.yres; - } - else - { - screen->width = 1024; - screen->height = 768; - } - screen->rate = 103; /* FIXME: should get proper value from fb driver */ - } - if (!screen->fb.depth) - { - if (k >= 0) - screen->fb.depth = var.bits_per_pixel; - else - screen->fb.depth = 16; - } - - if ((screen->width != var.xres) || (screen->height != var.yres)) - { - t = KdFindMode (screen, fbdevModeSupported); - screen->rate = t->rate; - screen->width = t->horizontal; - screen->height = t->vertical; - - /* Now try setting the mode */ - if (k < 0 || (t->horizontal != var.xres || t->vertical != var.yres)) - fbdevConvertMonitorTiming (t, &var); - } - - var.activate = FB_ACTIVATE_NOW; - var.bits_per_pixel = screen->fb.depth; - var.nonstd = 0; - var.grayscale = 0; - - k = ioctl (priv->fd, FBIOPUT_VSCREENINFO, &var); - - if (k < 0) - { - fprintf (stderr, "error: %s\n", strerror (errno)); - return FALSE; - } - - /* Re-get the "fixed" parameters since they might have changed */ - k = ioctl (priv->fd, FBIOGET_FSCREENINFO, &priv->fix); - if (k < 0) - perror ("FBIOGET_FSCREENINFO"); - - /* Now get the new screeninfo */ - ioctl (priv->fd, FBIOGET_VSCREENINFO, &priv->var); - depth = priv->var.bits_per_pixel; - gray = priv->var.grayscale; - - switch (priv->fix.visual) { - case FB_VISUAL_PSEUDOCOLOR: - if (gray) - { - screen->fb.visuals = (1 << StaticGray); - /* could also support GrayScale, but what's the point? */ - } - else - { - screen->fb.visuals = ((1 << StaticGray) | - (1 << GrayScale) | - (1 << StaticColor) | - (1 << PseudoColor) | - (1 << TrueColor) | - (1 << DirectColor)); - } - screen->fb.blueMask = 0x00; - screen->fb.greenMask = 0x00; - screen->fb.redMask = 0x00; - break; - case FB_VISUAL_STATIC_PSEUDOCOLOR: - if (gray) - { - screen->fb.visuals = (1 << StaticGray); - } - else - { - screen->fb.visuals = (1 << StaticColor); - } - screen->fb.blueMask = 0x00; - screen->fb.greenMask = 0x00; - screen->fb.redMask = 0x00; - break; - case FB_VISUAL_TRUECOLOR: - case FB_VISUAL_DIRECTCOLOR: - screen->fb.visuals = (1 << TrueColor); -#define Mask(o,l) (((1 << l) - 1) << o) - screen->fb.redMask = Mask (priv->var.red.offset, priv->var.red.length); - screen->fb.greenMask = Mask (priv->var.green.offset, priv->var.green.length); - screen->fb.blueMask = Mask (priv->var.blue.offset, priv->var.blue.length); - - /* - * This is a kludge so that Render will work -- fill in the gaps - * in the pixel - */ - screen->fb.redMask = fbdevMakeContig (screen->fb.redMask, - screen->fb.greenMask| - screen->fb.blueMask); - - screen->fb.greenMask = fbdevMakeContig (screen->fb.greenMask, - screen->fb.redMask| - screen->fb.blueMask); - - screen->fb.blueMask = fbdevMakeContig (screen->fb.blueMask, - screen->fb.redMask| - screen->fb.greenMask); - - allbits = screen->fb.redMask | screen->fb.greenMask | screen->fb.blueMask; - depth = 32; - while (depth && !(allbits & (1 << (depth - 1)))) - depth--; - break; - default: - return FALSE; - break; - } - screen->fb.depth = depth; - screen->fb.bitsPerPixel = priv->var.bits_per_pixel; - - scrpriv->randr = screen->randr; - - return fbdevMapFramebuffer (screen); -} - -Bool -fbdevScreenInit (KdScreenInfo *screen) -{ - FbdevScrPriv *scrpriv; - - scrpriv = xcalloc (1, sizeof (FbdevScrPriv)); - if (!scrpriv) - return FALSE; - screen->driver = scrpriv; - if (!fbdevScreenInitialize (screen, scrpriv)) - { - screen->driver = 0; - xfree (scrpriv); - return FALSE; - } - return TRUE; -} - -static void * -fbdevWindowLinear (ScreenPtr pScreen, - CARD32 row, - CARD32 offset, - int mode, - CARD32 *size, - void *closure) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - - if (!pScreenPriv->enabled) - return 0; - *size = priv->fix.line_length; - return (CARD8 *) priv->fb + row * priv->fix.line_length + offset; -} - -Bool -fbdevMapFramebuffer (KdScreenInfo *screen) -{ - FbdevScrPriv *scrpriv = screen->driver; - KdPointerMatrix m; - FbdevPriv *priv = screen->card->driver; - - if (scrpriv->randr != RR_Rotate_0) - scrpriv->shadow = TRUE; - else - scrpriv->shadow = FALSE; - - KdComputePointerMatrix (&m, scrpriv->randr, screen->width, screen->height); - - KdSetPointerMatrix (&m); - - screen->width = priv->var.xres; - screen->height = priv->var.yres; - - if (scrpriv->shadow) - { - if (!KdShadowFbAlloc (screen, - scrpriv->randr & (RR_Rotate_90|RR_Rotate_270))) - return FALSE; - } - else - { - screen->fb.byteStride = priv->fix.line_length; - screen->fb.pixelStride = (priv->fix.line_length * 8 / - priv->var.bits_per_pixel); - screen->fb.frameBuffer = (CARD8 *) (priv->fb); - } - - return TRUE; -} - -static void -fbdevSetScreenSizes (ScreenPtr pScreen) -{ - KdScreenPriv(pScreen); - KdScreenInfo *screen = pScreenPriv->screen; - FbdevScrPriv *scrpriv = screen->driver; - FbdevPriv *priv = screen->card->driver; - - if (scrpriv->randr & (RR_Rotate_0|RR_Rotate_180)) - { - pScreen->width = priv->var.xres; - pScreen->height = priv->var.yres; - pScreen->mmWidth = screen->width_mm; - pScreen->mmHeight = screen->height_mm; - } - else - { - pScreen->width = priv->var.yres; - pScreen->height = priv->var.xres; - pScreen->mmWidth = screen->height_mm; - pScreen->mmHeight = screen->width_mm; - } -} - -static Bool -fbdevUnmapFramebuffer (KdScreenInfo *screen) -{ - KdShadowFbFree (screen); - return TRUE; -} - -static Bool -fbdevSetShadow (ScreenPtr pScreen) -{ - KdScreenPriv(pScreen); - KdScreenInfo *screen = pScreenPriv->screen; - FbdevScrPriv *scrpriv = screen->driver; - FbdevPriv *priv = screen->card->driver; - ShadowUpdateProc update; - ShadowWindowProc window; - int useYX = 0; - -#ifdef __arm__ - /* Use variant copy routines that always read left to right in the - shadow framebuffer. Reading vertical strips is exceptionally - slow on XScale due to cache effects. */ - useYX = 1; -#endif - - window = fbdevWindowLinear; - update = 0; - if (scrpriv->randr) - if (priv->var.bits_per_pixel == 16) { - switch (scrpriv->randr) { - case RR_Rotate_90: - if (useYX) - update = shadowUpdateRotate16_90YX; - else - update = shadowUpdateRotate16_90; - break; - case RR_Rotate_180: - update = shadowUpdateRotate16_180; - break; - case RR_Rotate_270: - if (useYX) - update = shadowUpdateRotate16_270YX; - else - update = shadowUpdateRotate16_270; - break; - default: - update = shadowUpdateRotate16; - break; - } - } else - update = shadowUpdateRotatePacked; - else - update = shadowUpdatePacked; - return KdShadowSet (pScreen, scrpriv->randr, update, window); -} - - -#ifdef RANDR -static Bool -fbdevRandRGetInfo (ScreenPtr pScreen, Rotation *rotations) -{ - KdScreenPriv(pScreen); - KdScreenInfo *screen = pScreenPriv->screen; - FbdevScrPriv *scrpriv = screen->driver; - RRScreenSizePtr pSize; - Rotation randr; - int n; - - *rotations = RR_Rotate_All|RR_Reflect_All; - - for (n = 0; n < pScreen->numDepths; n++) - if (pScreen->allowedDepths[n].numVids) - break; - if (n == pScreen->numDepths) - return FALSE; - - pSize = RRRegisterSize (pScreen, - screen->width, - screen->height, - screen->width_mm, - screen->height_mm); - - randr = KdSubRotation (scrpriv->randr, screen->randr); - - RRSetCurrentConfig (pScreen, randr, 0, pSize); - - return TRUE; -} - -static Bool -fbdevRandRSetConfig (ScreenPtr pScreen, - Rotation randr, - int rate, - RRScreenSizePtr pSize) -{ - KdScreenPriv(pScreen); - KdScreenInfo *screen = pScreenPriv->screen; - FbdevScrPriv *scrpriv = screen->driver; - Bool wasEnabled = pScreenPriv->enabled; - FbdevScrPriv oldscr; - int oldwidth; - int oldheight; - int oldmmwidth; - int oldmmheight; - int newwidth, newheight; - - if (screen->randr & (RR_Rotate_0|RR_Rotate_180)) - { - newwidth = pSize->width; - newheight = pSize->height; - } - else - { - newwidth = pSize->height; - newheight = pSize->width; - } - - if (wasEnabled) - KdDisableScreen (pScreen); - - oldscr = *scrpriv; - - oldwidth = screen->width; - oldheight = screen->height; - oldmmwidth = pScreen->mmWidth; - oldmmheight = pScreen->mmHeight; - - /* - * Set new configuration - */ - - scrpriv->randr = KdAddRotation (screen->randr, randr); - - fbdevUnmapFramebuffer (screen); - - if (!fbdevMapFramebuffer (screen)) - goto bail4; - - KdShadowUnset (screen->pScreen); - - if (!fbdevSetShadow (screen->pScreen)) - goto bail4; - - fbdevSetScreenSizes (screen->pScreen); - - /* - * Set frame buffer mapping - */ - (*pScreen->ModifyPixmapHeader) (fbGetScreenPixmap (pScreen), - pScreen->width, - pScreen->height, - screen->fb.depth, - screen->fb.bitsPerPixel, - screen->fb.byteStride, - screen->fb.frameBuffer); - - /* set the subpixel order */ - - KdSetSubpixelOrder (pScreen, scrpriv->randr); - if (wasEnabled) - KdEnableScreen (pScreen); - - return TRUE; - -bail4: - fbdevUnmapFramebuffer (screen); - *scrpriv = oldscr; - (void) fbdevMapFramebuffer (screen); - pScreen->width = oldwidth; - pScreen->height = oldheight; - pScreen->mmWidth = oldmmwidth; - pScreen->mmHeight = oldmmheight; - - if (wasEnabled) - KdEnableScreen (pScreen); - return FALSE; -} - -static Bool -fbdevRandRInit (ScreenPtr pScreen) -{ - rrScrPrivPtr pScrPriv; - - if (!RRScreenInit (pScreen)) - return FALSE; - - pScrPriv = rrGetScrPriv(pScreen); - pScrPriv->rrGetInfo = fbdevRandRGetInfo; - pScrPriv->rrSetConfig = fbdevRandRSetConfig; - return TRUE; -} -#endif - -static Bool -fbdevCreateColormap (ColormapPtr pmap) -{ - ScreenPtr pScreen = pmap->pScreen; - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - VisualPtr pVisual; - int i; - int nent; - xColorItem *pdefs; - - switch (priv->fix.visual) { - case FB_VISUAL_STATIC_PSEUDOCOLOR: - pVisual = pmap->pVisual; - nent = pVisual->ColormapEntries; - pdefs = xalloc (nent * sizeof (xColorItem)); - if (!pdefs) - return FALSE; - for (i = 0; i < nent; i++) - pdefs[i].pixel = i; - fbdevGetColors (pScreen, nent, pdefs); - for (i = 0; i < nent; i++) - { - pmap->red[i].co.local.red = pdefs[i].red; - pmap->red[i].co.local.green = pdefs[i].green; - pmap->red[i].co.local.blue = pdefs[i].blue; - } - xfree (pdefs); - return TRUE; - default: - return fbInitializeColormap (pmap); - } -} - -Bool -fbdevInitScreen (ScreenPtr pScreen) -{ -#ifdef TOUCHSCREEN - KdTsPhyScreen = pScreen->myNum; -#endif - - pScreen->CreateColormap = fbdevCreateColormap; - return TRUE; -} - -Bool -fbdevFinishInitScreen (ScreenPtr pScreen) -{ - if (!shadowSetup (pScreen)) - return FALSE; - -#ifdef RANDR - if (!fbdevRandRInit (pScreen)) - return FALSE; -#endif - - return TRUE; -} - - -Bool -fbdevCreateResources (ScreenPtr pScreen) -{ - return fbdevSetShadow (pScreen); -} - -void -fbdevPreserve (KdCardInfo *card) -{ -} - -static int -fbdevUpdateFbColormap(FbdevPriv *priv, int minidx, int maxidx) -{ - struct fb_cmap cmap; - - cmap.start = minidx; - cmap.len = maxidx - minidx + 1; - cmap.red = &priv->red[minidx]; - cmap.green = &priv->green[minidx]; - cmap.blue = &priv->blue[minidx]; - cmap.transp = 0; - - return ioctl(priv->fd, FBIOPUTCMAP, &cmap); -} - -Bool -fbdevEnable (ScreenPtr pScreen) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - int k; - - priv->var.activate = FB_ACTIVATE_NOW|FB_CHANGE_CMAP_VBL; - - /* display it on the LCD */ - k = ioctl (priv->fd, FBIOPUT_VSCREENINFO, &priv->var); - if (k < 0) - { - perror ("FBIOPUT_VSCREENINFO"); - return FALSE; - } - - if (priv->fix.visual == FB_VISUAL_DIRECTCOLOR) - { - int i; - - for (i = 0; - i < (1 << priv->var.red.length) || - i < (1 << priv->var.green.length) || - i < (1 << priv->var.blue.length); i++) - { - priv->red[i] = i * 65535 / ((1 << priv->var.red.length) - 1); - priv->green[i] = i * 65535 / ((1 << priv->var.green.length) - 1); - priv->blue[i] = i * 65535 / ((1 << priv->var.blue.length) - 1); - } - - fbdevUpdateFbColormap(priv, 0, i); - } - return TRUE; -} - -Bool -fbdevDPMS (ScreenPtr pScreen, int mode) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - static int oldmode = -1; - - if (mode == oldmode) - return TRUE; -#ifdef FBIOPUT_POWERMODE - if (ioctl (priv->fd, FBIOPUT_POWERMODE, &mode) >= 0) - { - oldmode = mode; - return TRUE; - } -#endif -#ifdef FBIOBLANK - if (ioctl (priv->fd, FBIOBLANK, mode ? mode + 1 : 0) >= 0) - { - oldmode = mode; - return TRUE; - } -#endif - return FALSE; -} - -void -fbdevDisable (ScreenPtr pScreen) -{ -} - -void -fbdevRestore (KdCardInfo *card) -{ -} - -void -fbdevScreenFini (KdScreenInfo *screen) -{ -} - -void -fbdevCardFini (KdCardInfo *card) -{ - FbdevPriv *priv = card->driver; - - munmap (priv->fb_base, priv->fix.smem_len); - close (priv->fd); - xfree (priv); -} - -/* - * Retrieve actual colormap and return selected n entries in pdefs. - */ -void -fbdevGetColors (ScreenPtr pScreen, int n, xColorItem *pdefs) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - struct fb_cmap cmap; - int p; - int k; - int min, max; - - min = 256; - max = 0; - for (k = 0; k < n; k++) - { - if (pdefs[k].pixel < min) - min = pdefs[k].pixel; - if (pdefs[k].pixel > max) - max = pdefs[k].pixel; - } - cmap.start = min; - cmap.len = max - min + 1; - cmap.red = &priv->red[min]; - cmap.green = &priv->green[min]; - cmap.blue = &priv->blue[min]; - cmap.transp = 0; - k = ioctl (priv->fd, FBIOGETCMAP, &cmap); - if (k < 0) - { - perror ("can't get colormap"); - return; - } - while (n--) - { - p = pdefs->pixel; - pdefs->red = priv->red[p]; - pdefs->green = priv->green[p]; - pdefs->blue = priv->blue[p]; - pdefs++; - } -} - -/* - * Change colormap by updating n entries described in pdefs. - */ -void -fbdevPutColors (ScreenPtr pScreen, int n, xColorItem *pdefs) -{ - KdScreenPriv(pScreen); - FbdevPriv *priv = pScreenPriv->card->driver; - int p; - int min, max; - - min = 256; - max = 0; - while (n--) - { - p = pdefs->pixel; - priv->red[p] = pdefs->red; - priv->green[p] = pdefs->green; - priv->blue[p] = pdefs->blue; - if (p < min) - min = p; - if (p > max) - max = p; - pdefs++; - } - - fbdevUpdateFbColormap(priv, min, max); -} +/*
+ * Copyright � 1999 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <kdrive-config.h>
+#endif
+#include "fbdev.h"
+#include <sys/ioctl.h>
+
+#include <errno.h>
+
+extern int KdTsPhyScreen;
+
+char *fbdevDevicePath = NULL;
+
+static Bool
+fbdevInitialize (KdCardInfo *card, FbdevPriv *priv)
+{
+ unsigned long off;
+
+ if (fbdevDevicePath == NULL)
+ fbdevDevicePath = "/dev/fb0";
+
+ if ((priv->fd = open(fbdevDevicePath, O_RDWR)) < 0)
+ {
+ ErrorF("Error opening framebuffer %s: %s\n",
+ fbdevDevicePath, strerror(errno));
+ return FALSE;
+ }
+
+ /* quiet valgrind */
+ memset (&priv->fix, '\0', sizeof (priv->fix));
+ if (ioctl(priv->fd, FBIOGET_FSCREENINFO, &priv->fix) < 0) {
+ perror("Error with /dev/fb ioctl FIOGET_FSCREENINFO");
+ close (priv->fd);
+ return FALSE;
+ }
+ /* quiet valgrind */
+ memset (&priv->var, '\0', sizeof (priv->var));
+ if (ioctl(priv->fd, FBIOGET_VSCREENINFO, &priv->var) < 0) {
+ perror("Error with /dev/fb ioctl FIOGET_VSCREENINFO");
+ close (priv->fd);
+ return FALSE;
+ }
+
+ priv->fb_base = (char *) mmap ((caddr_t) NULL,
+ priv->fix.smem_len,
+ PROT_READ|PROT_WRITE,
+ MAP_SHARED,
+ priv->fd, 0);
+
+ if (priv->fb_base == (char *)-1)
+ {
+ perror("ERROR: mmap framebuffer fails!");
+ close (priv->fd);
+ return FALSE;
+ }
+ off = (unsigned long) priv->fix.smem_start % (unsigned long) getpagesize();
+ priv->fb = priv->fb_base + off;
+ return TRUE;
+}
+
+Bool
+fbdevCardInit (KdCardInfo *card)
+{
+ FbdevPriv *priv;
+
+ priv = (FbdevPriv *) malloc(sizeof (FbdevPriv));
+ if (!priv)
+ return FALSE;
+
+ if (!fbdevInitialize (card, priv))
+ {
+ free(priv);
+ return FALSE;
+ }
+ card->driver = priv;
+
+ return TRUE;
+}
+
+static Pixel
+fbdevMakeContig (Pixel orig, Pixel others)
+{
+ Pixel low;
+
+ low = lowbit (orig) >> 1;
+ while (low && (others & low) == 0)
+ {
+ orig |= low;
+ low >>= 1;
+ }
+ return orig;
+}
+
+static Bool
+fbdevModeSupported (KdScreenInfo *screen,
+ const KdMonitorTiming *t)
+{
+ return TRUE;
+}
+
+static void
+fbdevConvertMonitorTiming (const KdMonitorTiming *t, struct fb_var_screeninfo *var)
+{
+ memset (var, 0, sizeof (struct fb_var_screeninfo));
+
+ var->xres = t->horizontal;
+ var->yres = t->vertical;
+ var->xres_virtual = t->horizontal;
+ var->yres_virtual = t->vertical;
+ var->xoffset = 0;
+ var->yoffset = 0;
+ var->pixclock = t->clock ? 1000000000 / t->clock : 0;
+ var->left_margin = t->hbp;
+ var->right_margin = t->hfp;
+ var->upper_margin = t->vbp;
+ var->lower_margin = t->vfp;
+ var->hsync_len = t->hblank - t->hfp - t->hbp;
+ var->vsync_len = t->vblank - t->vfp - t->vbp;
+
+ var->sync = 0;
+ var->vmode = 0;
+
+ if (t->hpol == KdSyncPositive)
+ var->sync |= FB_SYNC_HOR_HIGH_ACT;
+ if (t->vpol == KdSyncPositive)
+ var->sync |= FB_SYNC_VERT_HIGH_ACT;
+}
+
+static Bool
+fbdevScreenInitialize (KdScreenInfo *screen, FbdevScrPriv *scrpriv)
+{
+ FbdevPriv *priv = screen->card->driver;
+ Pixel allbits;
+ int depth;
+ Bool gray;
+ struct fb_var_screeninfo var;
+ const KdMonitorTiming *t;
+ int k;
+
+ k = ioctl (priv->fd, FBIOGET_VSCREENINFO, &var);
+
+ if (!screen->width || !screen->height)
+ {
+ if (k >= 0)
+ {
+ screen->width = var.xres;
+ screen->height = var.yres;
+ }
+ else
+ {
+ screen->width = 1024;
+ screen->height = 768;
+ }
+ screen->rate = 103; /* FIXME: should get proper value from fb driver */
+ }
+ if (!screen->fb.depth)
+ {
+ if (k >= 0)
+ screen->fb.depth = var.bits_per_pixel;
+ else
+ screen->fb.depth = 16;
+ }
+
+ if ((screen->width != var.xres) || (screen->height != var.yres))
+ {
+ t = KdFindMode (screen, fbdevModeSupported);
+ screen->rate = t->rate;
+ screen->width = t->horizontal;
+ screen->height = t->vertical;
+
+ /* Now try setting the mode */
+ if (k < 0 || (t->horizontal != var.xres || t->vertical != var.yres))
+ fbdevConvertMonitorTiming (t, &var);
+ }
+
+ var.activate = FB_ACTIVATE_NOW;
+ var.bits_per_pixel = screen->fb.depth;
+ var.nonstd = 0;
+ var.grayscale = 0;
+
+ k = ioctl (priv->fd, FBIOPUT_VSCREENINFO, &var);
+
+ if (k < 0)
+ {
+ fprintf (stderr, "error: %s\n", strerror (errno));
+ return FALSE;
+ }
+
+ /* Re-get the "fixed" parameters since they might have changed */
+ k = ioctl (priv->fd, FBIOGET_FSCREENINFO, &priv->fix);
+ if (k < 0)
+ perror ("FBIOGET_FSCREENINFO");
+
+ /* Now get the new screeninfo */
+ ioctl (priv->fd, FBIOGET_VSCREENINFO, &priv->var);
+ depth = priv->var.bits_per_pixel;
+ gray = priv->var.grayscale;
+
+ switch (priv->fix.visual) {
+ case FB_VISUAL_PSEUDOCOLOR:
+ if (gray)
+ {
+ screen->fb.visuals = (1 << StaticGray);
+ /* could also support GrayScale, but what's the point? */
+ }
+ else
+ {
+ screen->fb.visuals = ((1 << StaticGray) |
+ (1 << GrayScale) |
+ (1 << StaticColor) |
+ (1 << PseudoColor) |
+ (1 << TrueColor) |
+ (1 << DirectColor));
+ }
+ screen->fb.blueMask = 0x00;
+ screen->fb.greenMask = 0x00;
+ screen->fb.redMask = 0x00;
+ break;
+ case FB_VISUAL_STATIC_PSEUDOCOLOR:
+ if (gray)
+ {
+ screen->fb.visuals = (1 << StaticGray);
+ }
+ else
+ {
+ screen->fb.visuals = (1 << StaticColor);
+ }
+ screen->fb.blueMask = 0x00;
+ screen->fb.greenMask = 0x00;
+ screen->fb.redMask = 0x00;
+ break;
+ case FB_VISUAL_TRUECOLOR:
+ case FB_VISUAL_DIRECTCOLOR:
+ screen->fb.visuals = (1 << TrueColor);
+#define Mask(o,l) (((1 << l) - 1) << o)
+ screen->fb.redMask = Mask (priv->var.red.offset, priv->var.red.length);
+ screen->fb.greenMask = Mask (priv->var.green.offset, priv->var.green.length);
+ screen->fb.blueMask = Mask (priv->var.blue.offset, priv->var.blue.length);
+
+ /*
+ * This is a kludge so that Render will work -- fill in the gaps
+ * in the pixel
+ */
+ screen->fb.redMask = fbdevMakeContig (screen->fb.redMask,
+ screen->fb.greenMask|
+ screen->fb.blueMask);
+
+ screen->fb.greenMask = fbdevMakeContig (screen->fb.greenMask,
+ screen->fb.redMask|
+ screen->fb.blueMask);
+
+ screen->fb.blueMask = fbdevMakeContig (screen->fb.blueMask,
+ screen->fb.redMask|
+ screen->fb.greenMask);
+
+ allbits = screen->fb.redMask | screen->fb.greenMask | screen->fb.blueMask;
+ depth = 32;
+ while (depth && !(allbits & (1 << (depth - 1))))
+ depth--;
+ break;
+ default:
+ return FALSE;
+ break;
+ }
+ screen->fb.depth = depth;
+ screen->fb.bitsPerPixel = priv->var.bits_per_pixel;
+
+ scrpriv->randr = screen->randr;
+
+ return fbdevMapFramebuffer (screen);
+}
+
+Bool
+fbdevScreenInit (KdScreenInfo *screen)
+{
+ FbdevScrPriv *scrpriv;
+
+ scrpriv = calloc(1, sizeof (FbdevScrPriv));
+ if (!scrpriv)
+ return FALSE;
+ screen->driver = scrpriv;
+ if (!fbdevScreenInitialize (screen, scrpriv))
+ {
+ screen->driver = 0;
+ free(scrpriv);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+static void *
+fbdevWindowLinear (ScreenPtr pScreen,
+ CARD32 row,
+ CARD32 offset,
+ int mode,
+ CARD32 *size,
+ void *closure)
+{
+ KdScreenPriv(pScreen);
+ FbdevPriv *priv = pScreenPriv->card->driver;
+
+ if (!pScreenPriv->enabled)
+ return 0;
+ *size = priv->fix.line_length;
+ return (CARD8 *) priv->fb + row * priv->fix.line_length + offset;
+}
+
+Bool
+fbdevMapFramebuffer (KdScreenInfo *screen)
+{
+ FbdevScrPriv *scrpriv = screen->driver;
+ KdPointerMatrix m;
+ FbdevPriv *priv = screen->card->driver;
+
+ if (scrpriv->randr != RR_Rotate_0)
+ scrpriv->shadow = TRUE;
+ else
+ scrpriv->shadow = FALSE;
+
+ KdComputePointerMatrix (&m, scrpriv->randr, screen->width, screen->height);
+
+ KdSetPointerMatrix (&m);
+
+ screen->width = priv->var.xres;
+ screen->height = priv->var.yres;
+
+ if (scrpriv->shadow)
+ {
+ if (!KdShadowFbAlloc (screen,
+ scrpriv->randr & (RR_Rotate_90|RR_Rotate_270)))
+ return FALSE;
+ }
+ else
+ {
+ screen->fb.byteStride = priv->fix.line_length;
+ screen->fb.pixelStride = (priv->fix.line_length * 8 /
+ priv->var.bits_per_pixel);
+ screen->fb.frameBuffer = (CARD8 *) (priv->fb);
+ }
+
+ return TRUE;
+}
+
+static void
+fbdevSetScreenSizes (ScreenPtr pScreen)
+{
+ KdScreenPriv(pScreen);
+ KdScreenInfo *screen = pScreenPriv->screen;
+ FbdevScrPriv *scrpriv = screen->driver;
+ FbdevPriv *priv = screen->card->driver;
+
+ if (scrpriv->randr & (RR_Rotate_0|RR_Rotate_180))
+ {
+ pScreen->width = priv->var.xres;
+ pScreen->height = priv->var.yres;
+ pScreen->mmWidth = screen->width_mm;
+ pScreen->mmHeight = screen->height_mm;
+ }
+ else
+ {
+ pScreen->width = priv->var.yres;
+ pScreen->height = priv->var.xres;
+ pScreen->mmWidth = screen->height_mm;
+ pScreen->mmHeight = screen->width_mm;
+ }
+}
+
+static Bool
+fbdevUnmapFramebuffer (KdScreenInfo *screen)
+{
+ KdShadowFbFree (screen);
+ return TRUE;
+}
+
+static Bool
+fbdevSetShadow (ScreenPtr pScreen)
+{
+ KdScreenPriv(pScreen);
+ KdScreenInfo *screen = pScreenPriv->screen;
+ FbdevScrPriv *scrpriv = screen->driver;
+ FbdevPriv *priv = screen->card->driver;
+ ShadowUpdateProc update;
+ ShadowWindowProc window;
+ int useYX = 0;
+
+#ifdef __arm__
+ /* Use variant copy routines that always read left to right in the
+ shadow framebuffer. Reading vertical strips is exceptionally
+ slow on XScale due to cache effects. */
+ useYX = 1;
+#endif
+
+ window = fbdevWindowLinear;
+ update = 0;
+ if (scrpriv->randr)
+ if (priv->var.bits_per_pixel == 16) {
+ switch (scrpriv->randr) {
+ case RR_Rotate_90:
+ if (useYX)
+ update = shadowUpdateRotate16_90YX;
+ else
+ update = shadowUpdateRotate16_90;
+ break;
+ case RR_Rotate_180:
+ update = shadowUpdateRotate16_180;
+ break;
+ case RR_Rotate_270:
+ if (useYX)
+ update = shadowUpdateRotate16_270YX;
+ else
+ update = shadowUpdateRotate16_270;
+ break;
+ default:
+ update = shadowUpdateRotate16;
+ break;
+ }
+ } else
+ update = shadowUpdateRotatePacked;
+ else
+ update = shadowUpdatePacked;
+ return KdShadowSet (pScreen, scrpriv->randr, update, window);
+}
+
+
+#ifdef RANDR
+static Bool
+fbdevRandRGetInfo (ScreenPtr pScreen, Rotation *rotations)
+{
+ KdScreenPriv(pScreen);
+ KdScreenInfo *screen = pScreenPriv->screen;
+ FbdevScrPriv *scrpriv = screen->driver;
+ RRScreenSizePtr pSize;
+ Rotation randr;
+ int n;
+
+ *rotations = RR_Rotate_All|RR_Reflect_All;
+
+ for (n = 0; n < pScreen->numDepths; n++)
+ if (pScreen->allowedDepths[n].numVids)
+ break;
+ if (n == pScreen->numDepths)
+ return FALSE;
+
+ pSize = RRRegisterSize (pScreen,
+ screen->width,
+ screen->height,
+ screen->width_mm,
+ screen->height_mm);
+
+ randr = KdSubRotation (scrpriv->randr, screen->randr);
+
+ RRSetCurrentConfig (pScreen, randr, 0, pSize);
+
+ return TRUE;
+}
+
+static Bool
+fbdevRandRSetConfig (ScreenPtr pScreen,
+ Rotation randr,
+ int rate,
+ RRScreenSizePtr pSize)
+{
+ KdScreenPriv(pScreen);
+ KdScreenInfo *screen = pScreenPriv->screen;
+ FbdevScrPriv *scrpriv = screen->driver;
+ Bool wasEnabled = pScreenPriv->enabled;
+ FbdevScrPriv oldscr;
+ int oldwidth;
+ int oldheight;
+ int oldmmwidth;
+ int oldmmheight;
+ int newwidth, newheight;
+
+ if (screen->randr & (RR_Rotate_0|RR_Rotate_180))
+ {
+ newwidth = pSize->width;
+ newheight = pSize->height;
+ }
+ else
+ {
+ newwidth = pSize->height;
+ newheight = pSize->width;
+ }
+
+ if (wasEnabled)
+ KdDisableScreen (pScreen);
+
+ oldscr = *scrpriv;
+
+ oldwidth = screen->width;
+ oldheight = screen->height;
+ oldmmwidth = pScreen->mmWidth;
+ oldmmheight = pScreen->mmHeight;
+
+ /*
+ * Set new configuration
+ */
+
+ scrpriv->randr = KdAddRotation (screen->randr, randr);
+
+ fbdevUnmapFramebuffer (screen);
+
+ if (!fbdevMapFramebuffer (screen))
+ goto bail4;
+
+ KdShadowUnset (screen->pScreen);
+
+ if (!fbdevSetShadow (screen->pScreen))
+ goto bail4;
+
+ fbdevSetScreenSizes (screen->pScreen);
+
+ /*
+ * Set frame buffer mapping
+ */
+ (*pScreen->ModifyPixmapHeader) (fbGetScreenPixmap (pScreen),
+ pScreen->width,
+ pScreen->height,
+ screen->fb.depth,
+ screen->fb.bitsPerPixel,
+ screen->fb.byteStride,
+ screen->fb.frameBuffer);
+
+ /* set the subpixel order */
+
+ KdSetSubpixelOrder (pScreen, scrpriv->randr);
+ if (wasEnabled)
+ KdEnableScreen (pScreen);
+
+ return TRUE;
+
+bail4:
+ fbdevUnmapFramebuffer (screen);
+ *scrpriv = oldscr;
+ (void) fbdevMapFramebuffer (screen);
+ pScreen->width = oldwidth;
+ pScreen->height = oldheight;
+ pScreen->mmWidth = oldmmwidth;
+ pScreen->mmHeight = oldmmheight;
+
+ if (wasEnabled)
+ KdEnableScreen (pScreen);
+ return FALSE;
+}
+
+static Bool
+fbdevRandRInit (ScreenPtr pScreen)
+{
+ rrScrPrivPtr pScrPriv;
+
+ if (!RRScreenInit (pScreen))
+ return FALSE;
+
+ pScrPriv = rrGetScrPriv(pScreen);
+ pScrPriv->rrGetInfo = fbdevRandRGetInfo;
+ pScrPriv->rrSetConfig = fbdevRandRSetConfig;
+ return TRUE;
+}
+#endif
+
+static Bool
+fbdevCreateColormap (ColormapPtr pmap)
+{
+ ScreenPtr pScreen = pmap->pScreen;
+ KdScreenPriv(pScreen);
+ FbdevPriv *priv = pScreenPriv->card->driver;
+ VisualPtr pVisual;
+ int i;
+ int nent;
+ xColorItem *pdefs;
+
+ switch (priv->fix.visual) {
+ case FB_VISUAL_STATIC_PSEUDOCOLOR:
+ pVisual = pmap->pVisual;
+ nent = pVisual->ColormapEntries;
+ pdefs = malloc(nent * sizeof (xColorItem));
+ if (!pdefs)
+ return FALSE;
+ for (i = 0; i < nent; i++)
+ pdefs[i].pixel = i;
+ fbdevGetColors (pScreen, nent, pdefs);
+ for (i = 0; i < nent; i++)
+ {
+ pmap->red[i].co.local.red = pdefs[i].red;
+ pmap->red[i].co.local.green = pdefs[i].green;
+ pmap->red[i].co.local.blue = pdefs[i].blue;
+ }
+ free(pdefs);
+ return TRUE;
+ default:
+ return fbInitializeColormap (pmap);
+ }
+}
+
+Bool
+fbdevInitScreen (ScreenPtr pScreen)
+{
+#ifdef TOUCHSCREEN
+ KdTsPhyScreen = pScreen->myNum;
+#endif
+
+ pScreen->CreateColormap = fbdevCreateColormap;
+ return TRUE;
+}
+
+Bool
+fbdevFinishInitScreen (ScreenPtr pScreen)
+{
+ if (!shadowSetup (pScreen))
+ return FALSE;
+
+#ifdef RANDR
+ if (!fbdevRandRInit (pScreen))
+ return FALSE;
+#endif
+
+ return TRUE;
+}
+
+
+Bool
+fbdevCreateResources (ScreenPtr pScreen)
+{
+ return fbdevSetShadow (pScreen);
+}
+
+void
+fbdevPreserve (KdCardInfo *card)
+{
+}
+
+static int
+fbdevUpdateFbColormap(FbdevPriv *priv, int minidx, int maxidx)
+{
+ struct fb_cmap cmap;
+
+ cmap.start = minidx;
+ cmap.len = maxidx - minidx + 1;
+ cmap.red = &priv->red[minidx];
+ cmap.green = &priv->green[minidx];
+ cmap.blue = &priv->blue[minidx];
+ cmap.transp = 0;
+
+ return ioctl(priv->fd, FBIOPUTCMAP, &cmap);
+}
+
+Bool
+fbdevEnable (ScreenPtr pScreen)
+{
+ KdScreenPriv(pScreen);
+ FbdevPriv *priv = pScreenPriv->card->driver;
+ int k;
+
+ priv->var.activate = FB_ACTIVATE_NOW|FB_CHANGE_CMAP_VBL;
+
+ /* display it on the LCD */
+ k = ioctl (priv->fd, FBIOPUT_VSCREENINFO, &priv->var);
+ if (k < 0)
+ {
+ perror ("FBIOPUT_VSCREENINFO");
+ return FALSE;
+ }
+
+ if (priv->fix.visual == FB_VISUAL_DIRECTCOLOR)
+ {
+ int i;
+
+ for (i = 0;
+ i < (1 << priv->var.red.length) ||
+ i < (1 << priv->var.green.length) ||
+ i < (1 << priv->var.blue.length); i++)
+ {
+ priv->red[i] = i * 65535 / ((1 << priv->var.red.length) - 1);
+ priv->green[i] = i * 65535 / ((1 << priv->var.green.length) - 1);
+ priv->blue[i] = i * 65535 / ((1 << priv->var.blue.length) - 1);
+ }
+
+ fbdevUpdateFbColormap(priv, 0, i);
+ }
+ return TRUE;
+}
+
+Bool
+fbdevDPMS (ScreenPtr pScreen, int mode)
+{
+ KdScreenPriv(pScreen);
+ FbdevPriv *priv = pScreenPriv->card->driver;
+ static int oldmode = -1;
+
+ if (mode == oldmode)
+ return TRUE;
+#ifdef FBIOPUT_POWERMODE
+ if (ioctl (priv->fd, FBIOPUT_POWERMODE, &mode) >= 0)
+ {
+ oldmode = mode;
+ return TRUE;
+ }
+#endif
+#ifdef FBIOBLANK
+ if (ioctl (priv->fd, FBIOBLANK, mode ? mode + 1 : 0) >= 0)
+ {
+ oldmode = mode;
+ return TRUE;
+ }
+#endif
+ return FALSE;
+}
+
+void
+fbdevDisable (ScreenPtr pScreen)
+{
+}
+
+void
+fbdevRestore (KdCardInfo *card)
+{
+}
+
+void
+fbdevScreenFini (KdScreenInfo *screen)
+{
+}
+
+void
+fbdevCardFini (KdCardInfo *card)
+{
+ FbdevPriv *priv = card->driver;
+
+ munmap (priv->fb_base, priv->fix.smem_len);
+ close (priv->fd);
+ free(priv);
+}
+
+/*
+ * Retrieve actual colormap and return selected n entries in pdefs.
+ */
+void
+fbdevGetColors (ScreenPtr pScreen, int n, xColorItem *pdefs)
+{
+ KdScreenPriv(pScreen);
+ FbdevPriv *priv = pScreenPriv->card->driver;
+ struct fb_cmap cmap;
+ int p;
+ int k;
+ int min, max;
+
+ min = 256;
+ max = 0;
+ for (k = 0; k < n; k++)
+ {
+ if (pdefs[k].pixel < min)
+ min = pdefs[k].pixel;
+ if (pdefs[k].pixel > max)
+ max = pdefs[k].pixel;
+ }
+ cmap.start = min;
+ cmap.len = max - min + 1;
+ cmap.red = &priv->red[min];
+ cmap.green = &priv->green[min];
+ cmap.blue = &priv->blue[min];
+ cmap.transp = 0;
+ k = ioctl (priv->fd, FBIOGETCMAP, &cmap);
+ if (k < 0)
+ {
+ perror ("can't get colormap");
+ return;
+ }
+ while (n--)
+ {
+ p = pdefs->pixel;
+ pdefs->red = priv->red[p];
+ pdefs->green = priv->green[p];
+ pdefs->blue = priv->blue[p];
+ pdefs++;
+ }
+}
+
+/*
+ * Change colormap by updating n entries described in pdefs.
+ */
+void
+fbdevPutColors (ScreenPtr pScreen, int n, xColorItem *pdefs)
+{
+ KdScreenPriv(pScreen);
+ FbdevPriv *priv = pScreenPriv->card->driver;
+ int p;
+ int min, max;
+
+ min = 256;
+ max = 0;
+ while (n--)
+ {
+ p = pdefs->pixel;
+ priv->red[p] = pdefs->red;
+ priv->green[p] = pdefs->green;
+ priv->blue[p] = pdefs->blue;
+ if (p < min)
+ min = p;
+ if (p > max)
+ max = p;
+ pdefs++;
+ }
+
+ fbdevUpdateFbColormap(priv, min, max);
+}
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