diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/bsd/arm_video.c')
| -rw-r--r-- | xorg-server/hw/xfree86/os-support/bsd/arm_video.c | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/xorg-server/hw/xfree86/os-support/bsd/arm_video.c b/xorg-server/hw/xfree86/os-support/bsd/arm_video.c index e295c9244..3a639b8c6 100644 --- a/xorg-server/hw/xfree86/os-support/bsd/arm_video.c +++ b/xorg-server/hw/xfree86/os-support/bsd/arm_video.c @@ -66,35 +66,6 @@ #include "xf86_OSlib.h" #include "xf86OSpriv.h" -#ifdef __arm32__ -#include "machine/devmap.h" -struct memAccess { - int ioctl; - struct map_info memInfo; - void *regionVirtBase; - Bool Checked; - Bool OK; -}; - -static void *xf86MapInfoMap(); -static void xf86MapInfoUnmap(); -static struct memAccess *checkMapInfo(); -extern int vgaPhysLinearBase; - -/* A memAccess structure is needed for each possible region */ -struct memAccess vgaMemInfo = { CONSOLE_GET_MEM_INFO, NULL, NULL, - FALSE, FALSE -}; - -struct memAccess linearMemInfo = { CONSOLE_GET_LINEAR_INFO, NULL, NULL, - FALSE, FALSE -}; - -struct memAccess ioMemInfo = { CONSOLE_GET_IO_INFO, NULL, NULL, - FALSE, FALSE -}; -#endif /* __arm32__ */ - #if defined(__NetBSD__) && !defined(MAP_FILE) #define MAP_FLAGS MAP_SHARED #else @@ -108,12 +79,8 @@ struct memAccess ioMemInfo = { CONSOLE_GET_IO_INFO, NULL, NULL, /* Video Memory Mapping section */ /***************************************************************************/ -static Bool useDevMem = FALSE; static int devMemFd = -1; -static void *mapVidMem(int, unsigned long, unsigned long, int); -static void unmapVidMem(int, void *, unsigned long); - /* * Check if /dev/mem can be mmap'd. If it can't print a warning when * "warn" is TRUE. @@ -137,7 +104,6 @@ checkDevMem(Bool warn) if (base != MAP_FAILED) { munmap((caddr_t) base, 4096); devMemFd = fd; - useDevMem = TRUE; return; } else { @@ -146,7 +112,6 @@ checkDevMem(Bool warn) xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n", DEV_MEM, strerror(errno)); } - useDevMem = FALSE; return; } } @@ -154,266 +119,17 @@ checkDevMem(Bool warn) xf86Msg(X_WARNING, "checkDevMem: failed to open %s (%s)\n", DEV_MEM, strerror(errno)); } - useDevMem = FALSE; return; } void xf86OSInitVidMem(VidMemInfoPtr pVidMem) { - checkDevMem(TRUE); - pVidMem->linearSupported = useDevMem; - pVidMem->mapMem = armMapVidMem; - pVidMem->unmapVidMem = armUnmapVidMem; pVidMem->initialised = TRUE; } -static void * -mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - void *base; - - checkDevMem(FALSE); - - if (useDevMem) { - if (devMemFd < 0) { - FatalError("xf86MapVidMem: failed to open %s (%s)\n", - DEV_MEM, strerror(errno)); - } - base = mmap((caddr_t) 0, Size, - (flags & VIDMEM_READONLY) ? - PROT_READ : (PROT_READ | PROT_WRITE), - MAP_FLAGS, devMemFd, (off_t) Base + BUS_BASE_BWX); - if (base == MAP_FAILED) { - FatalError("%s: could not mmap %s [s=%x,a=%x] (%s)\n", - "xf86MapVidMem", DEV_MEM, Size, Base, strerror(errno)); - } - return base; - } - - /* else, mmap /dev/vga */ - if ((unsigned long) Base < 0xA0000 || (unsigned long) Base >= 0xC0000) { - FatalError("%s: Address 0x%x outside allowable range\n", - "xf86MapVidMem", Base); - } - base = mmap(0, Size, - (flags & VIDMEM_READONLY) ? - PROT_READ : (PROT_READ | PROT_WRITE), - MAP_FLAGS, xf86Info.consoleFd, (unsigned long) Base - 0xA0000); - if (base == MAP_FAILED) { - FatalError("xf86MapVidMem: Could not mmap /dev/vga (%s)\n", - strerror(errno)); - } - return base; -} - -static void -unmapVidMem(int ScreenNum, void *Base, unsigned long Size) -{ - munmap((caddr_t) Base, Size); -} - -/* - * Read BIOS via mmap()ing DEV_MEM - */ - -int -xf86ReadBIOS(unsigned long Base, unsigned long Offset, unsigned char *Buf, - int Len) -{ - unsigned char *ptr; - int psize; - int mlen; - - checkDevMem(TRUE); - if (devMemFd == -1) { - return -1; - } - - psize = getpagesize(); - Offset += Base & (psize - 1); - Base &= ~(psize - 1); - mlen = (Offset + Len + psize - 1) & ~(psize - 1); - ptr = (unsigned char *) mmap((caddr_t) 0, mlen, PROT_READ, - MAP_SHARED, devMemFd, (off_t) Base + BUS_BASE); - if ((long) ptr == -1) { - xf86Msg(X_WARNING, - "xf86ReadBIOS: %s mmap[s=%x,a=%x,o=%x] failed (%s)\n", - DEV_MEM, Len, Base, Offset, strerror(errno)); - return -1; - } -#ifdef DEBUG - ErrorF("xf86ReadBIOS: BIOS at 0x%08x has signature 0x%04x\n", - Base, ptr[0] | (ptr[1] << 8)); -#endif - (void) memcpy(Buf, (void *) (ptr + Offset), Len); - (void) munmap((caddr_t) ptr, mlen); -#ifdef DEBUG - xf86MsgVerb(X_INFO, 3, "xf86ReadBIOS(%x, %x, Buf, %x)" - "-> %02x %02x %02x %02x...\n", - Base, Offset, Len, Buf[0], Buf[1], Buf[2], Buf[3]); -#endif - return Len; -} - -/* XXX This needs to be updated for the ND */ - -/* -** Find out whether the console driver provides memory mapping information -** for the specified region and return the map_info pointer. Print a warning if required. -*/ -static struct memAccess * -checkMapInfo(Bool warn, int Region) -{ - struct memAccess *memAccP; - - switch (Region) { - case VGA_REGION: - memAccP = &vgaMemInfo; - break; - - case LINEAR_REGION: - memAccP = &linearMemInfo; - break; - - case MMIO_REGION: - memAccP = &ioMemInfo; - break; - - default: - return NULL; - break; - } - - if (!memAccP->Checked) { - if (ioctl(xf86Info.consoleFd, memAccP->ioctl, &(memAccP->memInfo)) == - -1) { - if (warn) { - xf86Msg(X_WARNING, - "checkMapInfo: failed to get map info for region %d\n\t(%s)\n", - Region, strerror(errno)); - } - } - else { - if (memAccP->memInfo.u.map_info_mmap.map_offset != MAP_INFO_UNKNOWN) - memAccP->OK = TRUE; - } - memAccP->Checked = TRUE; - } - if (memAccP->OK) { - return memAccP; - } - else { - return NULL; - } -} - -static void * -xf86MapInfoMap(struct memAccess *memInfoP, void *Base, unsigned long Size) -{ - struct map_info *mapInfoP = &(memInfoP->memInfo); - - if (mapInfoP->u.map_info_mmap.map_size == MAP_INFO_UNKNOWN) { - Size = (unsigned long) Base + Size; - } - else { - Size = mapInfoP->u.map_info_mmap.map_size; - } - - switch (mapInfoP->method) { - case MAP_MMAP: - /* Need to remap if size is unknown because we may not have - mapped the whole region initially */ - if (memInfoP->regionVirtBase == NULL || - mapInfoP->u.map_info_mmap.map_size == MAP_INFO_UNKNOWN) { - if ((memInfoP->regionVirtBase = - mmap((caddr_t) 0, - Size, - PROT_READ | PROT_WRITE, - MAP_SHARED, - xf86Info.consoleFd, - (unsigned long) mapInfoP->u.map_info_mmap.map_offset)) - == (void *) -1) { - FatalError - ("xf86MapInfoMap: Failed to map memory at 0x%x\n\t%s\n", - mapInfoP->u.map_info_mmap.map_offset, strerror(errno)); - } - if (mapInfoP->u.map_info_mmap.internal_offset > 0) - memInfoP->regionVirtBase += - mapInfoP->u.map_info_mmap.internal_offset; - } - break; - - default: - FatalError("xf86MapInfoMap: Unsuported mapping method\n"); - break; - } - - return (void *) ((int) memInfoP->regionVirtBase + (int) Base); -} - -static void -xf86MapInfoUnmap(struct memAccess *memInfoP, unsigned long Size) -{ - struct map_info *mapInfoP = &(memInfoP->memInfo); - - switch (mapInfoP->method) { - case MAP_MMAP: - if (memInfoP->regionVirtBase != NULL) { - if (mapInfoP->u.map_info_mmap.map_size != MAP_INFO_UNKNOWN) - Size = mapInfoP->u.map_info_mmap.map_size; - munmap((caddr_t) memInfoP->regionVirtBase, Size); - memInfoP->regionVirtBase = NULL; - } - break; - default: - FatalError("xf86MapInfoMap: Unsuported mapping method\n"); - break; - } -} - -static void * -armMapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags) -{ - struct memAccess *memInfoP; - - if ((memInfoP = checkMapInfo(FALSE, Region)) != NULL) { - /* - ** xf86 passes in a physical address offset from the start - ** of physical memory, but xf86MapInfoMap expects an - ** offset from the start of the specified region - it gets - ** the physical address of the region from the display driver. - */ - switch (Region) { - case LINEAR_REGION: - if (vgaPhysLinearBase) { - Base -= vgaPhysLinearBase; - } - break; - case VGA_REGION: - Base -= 0xA0000; - break; - } - - base = xf86MapInfoMap(memInfoP, Base, Size); - return base; - } - return mapVidMem(ScreenNum, Base, Size, flags); -} - -static void -armUnmapVidMem(int ScreenNum, void *Base, unsigned long Size) -{ - struct memAccess *memInfoP; - - if ((memInfoP = checkMapInfo(FALSE, Region)) != NULL) { - xf86MapInfoUnmap(memInfoP, Base, Size); - } - unmapVidMem(ScreenNum, Base, Size); -} - #ifdef USE_DEV_IO static int IoFd = -1; |