diff options
Diffstat (limited to 'xorg-server/hw/kdrive/fbdev/fbdev.c')
| -rw-r--r-- | xorg-server/hw/kdrive/fbdev/fbdev.c | 821 |
1 files changed, 821 insertions, 0 deletions
diff --git a/xorg-server/hw/kdrive/fbdev/fbdev.c b/xorg-server/hw/kdrive/fbdev/fbdev.c new file mode 100644 index 000000000..177be0bdc --- /dev/null +++ b/xorg-server/hw/kdrive/fbdev/fbdev.c @@ -0,0 +1,821 @@ +/* + * 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; + +Bool +fbdevInitialize (KdCardInfo *card, FbdevPriv *priv) +{ + int k; + 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 ((k=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 ((k=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; +} + +#define FBDEV_KLUDGE_FORMAT +#ifdef FBDEV_KLUDGE_FORMAT +static Pixel +fbdevMakeContig (Pixel orig, Pixel others) +{ + Pixel low; + + low = lowbit (orig) >> 1; + while (low && (others & low) == 0) + { + orig |= low; + low >>= 1; + } + return orig; +} +#endif + +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; +} + +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[0].depth) + screen->fb[0].depth = 16; + + 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[0].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[0].visuals = (1 << StaticGray); + /* could also support GrayScale, but what's the point? */ + } + else + { + screen->fb[0].visuals = ((1 << StaticGray) | + (1 << GrayScale) | + (1 << StaticColor) | + (1 << PseudoColor) | + (1 << TrueColor) | + (1 << DirectColor)); + } + screen->fb[0].blueMask = 0x00; + screen->fb[0].greenMask = 0x00; + screen->fb[0].redMask = 0x00; + break; + case FB_VISUAL_STATIC_PSEUDOCOLOR: + if (gray) + { + screen->fb[0].visuals = (1 << StaticGray); + } + else + { + screen->fb[0].visuals = (1 << StaticColor); + } + screen->fb[0].blueMask = 0x00; + screen->fb[0].greenMask = 0x00; + screen->fb[0].redMask = 0x00; + break; + case FB_VISUAL_TRUECOLOR: + case FB_VISUAL_DIRECTCOLOR: + screen->fb[0].visuals = (1 << TrueColor); +#define Mask(o,l) (((1 << l) - 1) << o) + screen->fb[0].redMask = Mask (priv->var.red.offset, priv->var.red.length); + screen->fb[0].greenMask = Mask (priv->var.green.offset, priv->var.green.length); + screen->fb[0].blueMask = Mask (priv->var.blue.offset, priv->var.blue.length); +#ifdef FBDEV_KLUDGE_FORMAT + /* + * This is a kludge so that Render will work -- fill in the gaps + * in the pixel + */ + screen->fb[0].redMask = fbdevMakeContig (screen->fb[0].redMask, + screen->fb[0].greenMask| + screen->fb[0].blueMask); + + screen->fb[0].greenMask = fbdevMakeContig (screen->fb[0].greenMask, + screen->fb[0].redMask| + screen->fb[0].blueMask); + + screen->fb[0].blueMask = fbdevMakeContig (screen->fb[0].blueMask, + screen->fb[0].redMask| + screen->fb[0].greenMask); + +#endif + allbits = screen->fb[0].redMask | screen->fb[0].greenMask | screen->fb[0].blueMask; + depth = 32; + while (depth && !(allbits & (1 << (depth - 1)))) + depth--; + break; + default: + return FALSE; + break; + } + screen->fb[0].depth = depth; + screen->fb[0].bitsPerPixel = priv->var.bits_per_pixel; + + scrpriv->randr = screen->randr; + + return fbdevMapFramebuffer (screen); +} + +Bool +fbdevScreenInit (KdScreenInfo *screen) +{ + FbdevScrPriv *scrpriv; + + scrpriv = xalloc (sizeof (FbdevScrPriv)); + if (!scrpriv) + return FALSE; + memset (scrpriv, '\0', sizeof (FbdevScrPriv)); + screen->driver = scrpriv; + if (!fbdevScreenInitialize (screen, scrpriv)) + { + screen->driver = 0; + xfree (scrpriv); + return FALSE; + } + return TRUE; +} + +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; + screen->memory_base = (CARD8 *) (priv->fb); + screen->memory_size = priv->fix.smem_len; + + if (scrpriv->shadow) + { + if (!KdShadowFbAlloc (screen, 0, + scrpriv->randr & (RR_Rotate_90|RR_Rotate_270))) + return FALSE; + screen->off_screen_base = screen->memory_size; + } + else + { + screen->fb[0].byteStride = priv->fix.line_length; + screen->fb[0].pixelStride = (priv->fix.line_length * 8 / + priv->var.bits_per_pixel); + screen->fb[0].frameBuffer = (CARD8 *) (priv->fb); + screen->off_screen_base = screen->fb[0].byteStride * screen->height; + } + + return TRUE; +} + +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; + } +} + +Bool +fbdevUnmapFramebuffer (KdScreenInfo *screen) +{ + KdShadowFbFree (screen, 0); + return TRUE; +} + +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 +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; +} + +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); + + KdOffscreenSwapOut (screen->pScreen); + + 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[0].depth, + screen->fb[0].bitsPerPixel, + screen->fb[0].byteStride, + screen->fb[0].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; +} + +Bool +fbdevRandRInit (ScreenPtr pScreen) +{ + rrScrPrivPtr pScrPriv; + + if (!RRScreenInit (pScreen)) + return FALSE; + + pScrPriv = rrGetScrPriv(pScreen); + pScrPriv->rrGetInfo = fbdevRandRGetInfo; + pScrPriv->rrSetConfig = fbdevRandRSetConfig; + return TRUE; +} +#endif + +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, 0, 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) +{ +} + +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) + { + struct fb_cmap cmap; + 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); + } + cmap.start = 0; + cmap.len = i; + cmap.red = &priv->red[0]; + cmap.green = &priv->green[0]; + cmap.blue = &priv->blue[0]; + cmap.transp = 0; + ioctl (priv->fd, FBIOPUTCMAP, &cmap); + } + 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); +} + +void +fbdevGetColors (ScreenPtr pScreen, int fb, 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++; + } +} + +void +fbdevPutColors (ScreenPtr pScreen, int fb, int n, xColorItem *pdefs) +{ + KdScreenPriv(pScreen); + FbdevPriv *priv = pScreenPriv->card->driver; + struct fb_cmap cmap; + 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++; + } + 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; + ioctl (priv->fd, FBIOPUTCMAP, &cmap); +} |