diff options
Diffstat (limited to 'xorg-server/hw/xfree86/fbdevhw/fbdevhw.c')
| -rw-r--r-- | xorg-server/hw/xfree86/fbdevhw/fbdevhw.c | 1017 |
1 files changed, 1017 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/fbdevhw/fbdevhw.c b/xorg-server/hw/xfree86/fbdevhw/fbdevhw.c new file mode 100644 index 000000000..4d514226e --- /dev/null +++ b/xorg-server/hw/xfree86/fbdevhw/fbdevhw.c @@ -0,0 +1,1017 @@ +/* all driver need this */ +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <string.h> + +#include "xf86.h" +#include "xf86_OSproc.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 + +/* -------------------------------------------------------------------- */ + +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} +}; + +_X_EXPORT 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; + } +} + +#include <fcntl.h> +#include <errno.h> +#include <sys/mman.h> +#include <sys/ioctl.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +/* -------------------------------------------------------------------- */ +/* 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->displayWidth ? pScrn->displayWidth : + pScrn->virtualX; + var->yres_virtual = pScrn->virtualY; + var->bits_per_pixel = pScrn->bitsPerPixel; + if (pScrn->defaultVisual == TrueColor || + pScrn->defaultVisual == DirectColor) { + var->red.length = pScrn->weight.red; + var->green.length = pScrn->weight.green; + var->blue.length = pScrn->weight.blue; + } else { + var->red.length = 8; + var->green.length = 8; + var->blue.length = 8; + } +} + +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 Bool +fbdev_modes_equal(struct fb_var_screeninfo *set, struct fb_var_screeninfo *req) +{ + return (set->xres_virtual >= req->xres_virtual && + set->yres_virtual >= req->yres_virtual && + set->bits_per_pixel == req->bits_per_pixel && + set->red.length == req->red.length && + set->green.length == req->green.length && + set->blue.length == req->blue.length && + set->xres == req->xres && set->yres == req->yres && + set->pixclock == req->pixclock && + set->right_margin == req->right_margin && + set->hsync_len == req->hsync_len && + set->left_margin == req->left_margin && + set->lower_margin == req->lower_margin && + set->vsync_len == req->vsync_len && + set->upper_margin == req->upper_margin && + set->sync == req->sync && set->vmode == req->vmode); +} + +static void +fbdev2xfree_timing(struct fb_var_screeninfo *var, DisplayModePtr mode) +{ + mode->Clock = var->pixclock ? 1000000000/var->pixclock : 0; + 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(struct pci_device * pPci, char **namep) +{ + struct fb_fix_screeninfo fix; + char filename[256]; + int fd,i,j; + + + /* There are two ways to that we can determine which fb device is + * associated with this PCI device. The more modern way is to look in + * the sysfs directory for the PCI device for a file named + * "graphics/fb*" + */ + + for (i = 0; i < 8; i++) { + sprintf(filename, + "/sys/bus/pci/devices/%04x:%02x:%02x.%d/graphics/fb%d", + pPci->domain, pPci->bus, pPci->dev, pPci->func, i); + + fd = open(filename, O_RDONLY, 0); + if (fd != -1) { + close(fd); + sprintf(filename, "/dev/fb%d", i); + + fd = open(filename, O_RDWR, 0); + if (fd != -1) { + if (ioctl(fd, FBIOGET_FSCREENINFO, (void*) & fix) != -1) { + if (namep) { + *namep = xnfalloc(16); + strncpy(*namep,fix.id,16); + } + + return fd; + } + } + } + + close(fd); + } + + + /* The other way is to examine the resources associated with each fb + * device and see if there is a match with the PCI device. This technique + * has some problems on certain mixed 64-bit / 32-bit architectures. + * There is a flaw in the fb_fix_screeninfo structure in that it only + * returns the low 32-bits of the address of the resources associated with + * a device. However, on a mixed architecture the base addresses of PCI + * devices, even for 32-bit applications, may be higher than 0x0f0000000. + */ + + 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++) { + const pciaddr_t res_start = pPci->regions[j].base_addr; + const pciaddr_t res_end = res_start + pPci->regions[j].size; + + if ((0 != fix.smem_len && + (pciaddr_t) fix.smem_start >= res_start && + (pciaddr_t) fix.smem_start < res_end) || + (0 != fix.mmio_len && + (pciaddr_t) fix.mmio_start >= res_start && + (pciaddr_t) 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; + + xf86DrvMsg(-1, X_ERROR, + "Unable to find a valid framebuffer device\n"); + 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(struct pci_device * 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, struct pci_device * 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; +} + +static Bool +fbdevHWSetMode(ScrnInfoPtr pScrn, DisplayModePtr mode, Bool check) +{ + fbdevHWPtr fPtr = FBDEVHWPTR(pScrn); + struct fb_var_screeninfo req_var = fPtr->var, set_var; + + TRACE_ENTER("SetMode"); + + xfree2fbdev_fblayout(pScrn, &req_var); + xfree2fbdev_timing(mode, &req_var); + +#if DEBUG + print_xfree_mode("init", mode); + print_fbdev_mode("init", &req_var); +#endif + + set_var = req_var; + + if (check) + set_var.activate = FB_ACTIVATE_TEST; + + if (0 != ioctl(fPtr->fd, FBIOPUT_VSCREENINFO, (void*)(&set_var))) { + xf86DrvMsg(pScrn->scrnIndex, X_ERROR, + "FBIOPUT_VSCREENINFO: %s\n", strerror(errno)); + return FALSE; + } + + if (!fbdev_modes_equal(&set_var, &req_var)) { + if (!check) + xf86DrvMsg(pScrn->scrnIndex, X_ERROR, + "FBIOPUT_VSCREENINFO succeeded but modified " + "mode\n"); +#if DEBUG + print_fbdev_mode("returned", &set_var); +#endif + return FALSE; + } + + if (!check) + fPtr->var = set_var; + + return TRUE; +} + +void +fbdevHWSetVideoModes(ScrnInfoPtr pScrn) +{ + char **modename; + DisplayModePtr mode,this,last = pScrn->modes; + + TRACE_ENTER("VerifyModes"); + if (NULL == pScrn->display->modes) + return; + + pScrn->virtualX = pScrn->display->virtualX; + pScrn->virtualY = pScrn->display->virtualY; + + 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; + } + + if (!fbdevHWSetMode(pScrn, mode, TRUE)) { + xf86DrvMsg(pScrn->scrnIndex, X_INFO, + "\tmode \"%s\" test failed\n", *modename); + continue; + } + xf86DrvMsg(pScrn->scrnIndex, X_INFO, + "\tmode \"%s\" ok\n", *modename); + + if (pScrn->virtualX < mode->HDisplay) + pScrn->virtualX = mode->HDisplay; + if (pScrn->virtualY < mode->VDisplay) + pScrn->virtualY = mode->VDisplay; + + if (NULL == pScrn->modes) { + this = pScrn->modes = xf86DuplicateMode(mode); + this->next = this; + this->prev = this; + } else { + this = xf86DuplicateMode(mode); + this->next = pScrn->modes; + this->prev = last; + last->next = this; + pScrn->modes->prev = this; + } + last = this; + } +} + +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); + + pScrn->vtSema = TRUE; + + /* set */ + if (!fbdevHWSetMode(pScrn, mode, FALSE)) + 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; + } + + if (pScrn->defaultVisual == TrueColor || + pScrn->defaultVisual == DirectColor) { + /* XXX: This is a hack, but it should be a NOP for all the setups that + * worked before and actually seems to fix some others... + */ + pScrn->offset.red = fPtr->var.red.offset; + pScrn->offset.green = fPtr->var.green.offset; + pScrn->offset.blue = fPtr->var.blue.offset; + pScrn->mask.red = ((1 << fPtr->var.red.length) - 1) << fPtr->var.red.offset; + pScrn->mask.green = ((1 << fPtr->var.green.length) - 1) << fPtr->var.green.offset; + pScrn->mask.blue = ((1 << fPtr->var.blue.length) - 1) << fPtr->var.blue.offset; + } + + 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]; + + TRACE_ENTER("ValidMode"); + + if (!fbdevHWSetMode(pScrn, mode, TRUE)) + return MODE_BAD; + + return MODE_OK; +} + +Bool +fbdevHWSwitchMode(int scrnIndex, DisplayModePtr mode, int flags) +{ + ScrnInfoPtr pScrn = xf86Screens[scrnIndex]; + + TRACE_ENTER("SwitchMode"); + + if (!fbdevHWSetMode(pScrn, mode, FALSE)) + 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, X_WARNING, 5, + "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; } |