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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.c1332
1 files changed, 666 insertions, 666 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 10cfee764..eb631a7f3 100644
--- a/xorg-server/hw/xfree86/os-support/bsd/arm_video.c
+++ b/xorg-server/hw/xfree86/os-support/bsd/arm_video.c
@@ -1,666 +1,666 @@
-/*
- * Copyright 1992 by Rich Murphey <Rich@Rice.edu>
- * Copyright 1993 by David Wexelblat <dwex@goblin.org>
- *
- * 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 names of Rich Murphey and David Wexelblat
- * not be used in advertising or publicity pertaining to distribution of
- * the software without specific, written prior permission. Rich Murphey and
- * David Wexelblat make no representations about the suitability of this
- * software for any purpose. It is provided "as is" without express or
- * implied warranty.
- *
- * RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
- * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT 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.
- *
- */
-
-/*
- * The ARM32 code here carries the following copyright:
- *
- * Copyright 1997
- * Digital Equipment Corporation. All rights reserved.
- * This software is furnished under license and may be used and copied only in
- * accordance with the following terms and conditions. Subject to these
- * conditions, you may download, copy, install, use, modify and distribute
- * this software in source and/or binary form. No title or ownership is
- * transferred hereby.
- *
- * 1) Any source code used, modified or distributed must reproduce and retain
- * this copyright notice and list of conditions as they appear in the
- * source file.
- *
- * 2) No right is granted to use any trade name, trademark, or logo of Digital
- * Equipment Corporation. Neither the "Digital Equipment Corporation"
- * name nor any trademark or logo of Digital Equipment Corporation may be
- * used to endorse or promote products derived from this software without
- * the prior written permission of Digital Equipment Corporation.
- *
- * 3) This software is provided "AS-IS" and any express or implied warranties,
- * including but not limited to, any implied warranties of merchantability,
- * fitness for a particular purpose, or non-infringement are disclaimed.
- * In no event shall DIGITAL be liable for any damages whatsoever, and in
- * particular, DIGITAL shall not be liable for special, indirect,
- * consequential, or incidental damages or damages for lost profits, loss
- * of revenue or loss of use, whether such damages arise in contract,
- * negligence, tort, under statute, in equity, at law or otherwise, even
- * if advised of the possibility of such damage.
- *
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <X11/X.h>
-#include "xf86.h"
-#include "xf86Priv.h"
-#include "xf86_OSlib.h"
-#include "xf86OSpriv.h"
-
-#ifdef __arm32__
-#include "machine/devmap.h"
-struct memAccess
-{
- int ioctl;
- struct map_info memInfo;
- pointer regionVirtBase;
- Bool Checked;
- Bool OK;
-};
-
-static pointer 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
-#define MAP_FLAGS (MAP_FILE | MAP_SHARED)
-#endif
-
-#ifndef MAP_FAILED
-#define MAP_FAILED ((caddr_t)-1)
-#endif
-
-
-#define BUS_BASE 0L
-#define BUS_BASE_BWX 0L
-
-
-/***************************************************************************/
-/* Video Memory Mapping section */
-/***************************************************************************/
-
-static Bool useDevMem = FALSE;
-static int devMemFd = -1;
-
-#define DEV_MEM "/dev/mem"
-
-static pointer mapVidMem(int, unsigned long, unsigned long, int);
-static void unmapVidMem(int, pointer, unsigned long);
-
-/*
- * Check if /dev/mem can be mmap'd. If it can't print a warning when
- * "warn" is TRUE.
- */
-static void
-checkDevMem(Bool warn)
-{
- static Bool devMemChecked = FALSE;
- int fd;
- pointer base;
-
- if (devMemChecked)
- return;
- devMemChecked = TRUE;
-
- if ((fd = open(DEV_MEM, O_RDWR)) >= 0)
- {
- /* Try to map a page at the VGA address */
- base = mmap((caddr_t)0, 4096, PROT_READ | PROT_WRITE,
- MAP_FLAGS, fd, (off_t)0xA0000 + BUS_BASE);
-
- if (base != MAP_FAILED)
- {
- munmap((caddr_t)base, 4096);
- devMemFd = fd;
- useDevMem = TRUE;
- return;
- } else {
- /* This should not happen */
- if (warn)
- {
- xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n",
- DEV_MEM, strerror(errno));
- }
- useDevMem = FALSE;
- return;
- }
- }
- if (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 pointer
-mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
-{
- pointer 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.screenFd,
- (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, pointer 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.screenFd, 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 pointer
-xf86MapInfoMap(struct memAccess *memInfoP, pointer 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.screenFd,
- (unsigned long)mapInfoP->u.map_info_mmap.map_offset))
- == (pointer)-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 (pointer)((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 pointer
-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, pointer 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;
-
-Bool
-xf86EnableIO()
-{
- if (IoFd >= 0)
- return TRUE;
-
- if ((IoFd = open("/dev/io", O_RDWR)) == -1)
- {
- xf86Msg(X_WARNING,"xf86EnableIO: "
- "Failed to open /dev/io for extended I/O\n");
- return FALSE;
- }
- return TRUE;
-}
-
-void
-xf86DisableIO()
-{
- if (IoFd < 0)
- return;
-
- close(IoFd);
- IoFd = -1;
- return;
-}
-
-#endif
-
-#if defined(USE_ARC_MMAP) || defined(__arm32__)
-
-Bool
-xf86EnableIO()
-{
- int fd;
- pointer base;
-
- if (ExtendedEnabled)
- return TRUE;
-
- if ((fd = open("/dev/ttyC0", O_RDWR)) >= 0) {
- /* Try to map a page at the pccons I/O space */
- base = (pointer)mmap((caddr_t)0, 65536, PROT_READ | PROT_WRITE,
- MAP_FLAGS, fd, (off_t)0x0000);
-
- if (base != (pointer)-1) {
- IOPortBase = base;
- }
- else {
- xf86Msg(X_WARNING,"EnableIO: failed to mmap %s (%s)\n",
- "/dev/ttyC0", strerror(errno));
- return FALSE;
- }
- }
- else {
- xf86Msg("EnableIO: failed to open %s (%s)\n",
- "/dev/ttyC0", strerror(errno));
- return FALSE;
- }
-
- ExtendedEnabled = TRUE;
-
- return TRUE;
-}
-
-void
-xf86DisableIO()
-{
- return;
-}
-
-#endif /* USE_ARC_MMAP */
-
-#if 0
-/*
- * XXX This is here for reference. It needs to be handled differently for the
- * ND.
- */
-#if defined(USE_ARC_MMAP) || defined(__arm32__)
-
-#ifdef USE_ARM32_MMAP
-#define DEV_MEM_IOBASE 0x43000000
-#endif
-
-static Bool ScreenEnabled[MAXSCREENS];
-static Bool ExtendedEnabled = FALSE;
-static Bool InitDone = FALSE;
-
-Bool
-xf86EnableIOPorts(ScreenNum)
-int ScreenNum;
-{
- int i;
- int fd;
- pointer base;
-
-#ifdef __arm32__
- struct memAccess *memInfoP;
- int *Size;
-#endif
-
- ScreenEnabled[ScreenNum] = TRUE;
-
- if (ExtendedEnabled)
- return TRUE;
-
-#ifdef USE_ARC_MMAP
- if ((fd = open("/dev/ttyC0", O_RDWR)) >= 0) {
- /* Try to map a page at the pccons I/O space */
- base = (pointer)mmap((caddr_t)0, 65536, PROT_READ | PROT_WRITE,
- MAP_FLAGS, fd, (off_t)0x0000);
-
- if (base != (pointer)-1) {
- IOPortBase = base;
- }
- else {
- xf86Msg(X_ERROR,
- "EnableIOPorts: failed to mmap %s (%s)\n",
- "/dev/ttyC0", strerror(errno));
- }
- }
- else {
- xf86Msg(X_ERROR, "EnableIOPorts: failed to open %s (%s)\n",
- "/dev/ttyC0", strerror(errno));
- }
-#endif
-
-#ifdef __arm32__
- IOPortBase = (unsigned int)-1;
-
- if((memInfoP = checkMapInfo(TRUE, MMIO_REGION)) != NULL)
- {
- /*
- * xf86MapInfoMap maps an offset from the start of video IO
- * space (e.g. 0x3B0), but IOPortBase is expected to map to
- * physical address 0x000, so subtract the start of video I/O
- * space from the result. This is safe for now becase we
- * actually mmap the start of the page, then the start of video
- * I/O space is added as an internal offset.
- */
- IOPortBase = (unsigned int)xf86MapInfoMap(memInfoP,
- (caddr_t)0x0, 0L)
- - memInfoP->memInfo.u.map_info_mmap.internal_offset;
- ExtendedEnabled = TRUE;
- return TRUE;
- }
-#ifdef USE_ARM32_MMAP
- checkDevMem(TRUE);
-
- if (devMemFd >= 0 && useDevMem)
- {
- base = (pointer)mmap((caddr_t)0, 0x400, PROT_READ | PROT_WRITE,
- MAP_FLAGS, devMemFd, (off_t)DEV_MEM_IOBASE);
-
- if (base != (pointer)-1)
- IOPortBase = (unsigned int)base;
- }
-
- if (IOPortBase == (unsigned int)-1)
- {
- xf86Msg(X_WARNING,"xf86EnableIOPorts: failed to open mem device or map IO base. \n\
-Make sure you have the Aperture Driver installed, or a kernel built with the INSECURE option\n");
- return FALSE;
- }
-#else
- /* We don't have the IOBASE, so we can't map the address */
- xf86Msg(X_WARNING,"xf86EnableIOPorts: failed to open mem device or map IO base. \n\
-Try building the server with USE_ARM32_MMAP defined\n");
- return FALSE;
-#endif
-#endif
-
- ExtendedEnabled = TRUE;
-
- return TRUE;
-}
-
-void
-xf86DisableIOPorts(ScreenNum)
-int ScreenNum;
-{
- int i;
-#ifdef __arm32__
- struct memAccess *memInfoP;
-#endif
-
- ScreenEnabled[ScreenNum] = FALSE;
-
-#ifdef __arm32__
- if((memInfoP = checkMapInfo(FALSE, MMIO_REGION)) != NULL)
- {
- xf86MapInfoUnmap(memInfoP, 0);
- }
-#endif
-
-#ifdef USE_ARM32_MMAP
- if (!ExtendedEnabled)
- return;
-
- for (i = 0; i < MAXSCREENS; i++)
- if (ScreenEnabled[i])
- return;
-
- munmap((caddr_t)IOPortBase, 0x400);
- IOPortBase = (unsigned int)-1;
- ExtendedEnabled = FALSE;
-#endif
-
- return;
-}
-
-#endif /* USE_ARC_MMAP || USE_ARM32_MMAP */
-#endif
-
-
+/*
+ * Copyright 1992 by Rich Murphey <Rich@Rice.edu>
+ * Copyright 1993 by David Wexelblat <dwex@goblin.org>
+ *
+ * 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 names of Rich Murphey and David Wexelblat
+ * not be used in advertising or publicity pertaining to distribution of
+ * the software without specific, written prior permission. Rich Murphey and
+ * David Wexelblat make no representations about the suitability of this
+ * software for any purpose. It is provided "as is" without express or
+ * implied warranty.
+ *
+ * RICH MURPHEY AND DAVID WEXELBLAT DISCLAIM ALL WARRANTIES WITH REGARD TO
+ * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RICH MURPHEY OR DAVID WEXELBLAT 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.
+ *
+ */
+
+/*
+ * The ARM32 code here carries the following copyright:
+ *
+ * Copyright 1997
+ * Digital Equipment Corporation. All rights reserved.
+ * This software is furnished under license and may be used and copied only in
+ * accordance with the following terms and conditions. Subject to these
+ * conditions, you may download, copy, install, use, modify and distribute
+ * this software in source and/or binary form. No title or ownership is
+ * transferred hereby.
+ *
+ * 1) Any source code used, modified or distributed must reproduce and retain
+ * this copyright notice and list of conditions as they appear in the
+ * source file.
+ *
+ * 2) No right is granted to use any trade name, trademark, or logo of Digital
+ * Equipment Corporation. Neither the "Digital Equipment Corporation"
+ * name nor any trademark or logo of Digital Equipment Corporation may be
+ * used to endorse or promote products derived from this software without
+ * the prior written permission of Digital Equipment Corporation.
+ *
+ * 3) This software is provided "AS-IS" and any express or implied warranties,
+ * including but not limited to, any implied warranties of merchantability,
+ * fitness for a particular purpose, or non-infringement are disclaimed.
+ * In no event shall DIGITAL be liable for any damages whatsoever, and in
+ * particular, DIGITAL shall not be liable for special, indirect,
+ * consequential, or incidental damages or damages for lost profits, loss
+ * of revenue or loss of use, whether such damages arise in contract,
+ * negligence, tort, under statute, in equity, at law or otherwise, even
+ * if advised of the possibility of such damage.
+ *
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#include <X11/X.h>
+#include "xf86.h"
+#include "xf86Priv.h"
+#include "xf86_OSlib.h"
+#include "xf86OSpriv.h"
+
+#ifdef __arm32__
+#include "machine/devmap.h"
+struct memAccess
+{
+ int ioctl;
+ struct map_info memInfo;
+ pointer regionVirtBase;
+ Bool Checked;
+ Bool OK;
+};
+
+static pointer 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
+#define MAP_FLAGS (MAP_FILE | MAP_SHARED)
+#endif
+
+#ifndef MAP_FAILED
+#define MAP_FAILED ((caddr_t)-1)
+#endif
+
+
+#define BUS_BASE 0L
+#define BUS_BASE_BWX 0L
+
+
+/***************************************************************************/
+/* Video Memory Mapping section */
+/***************************************************************************/
+
+static Bool useDevMem = FALSE;
+static int devMemFd = -1;
+
+#define DEV_MEM "/dev/mem"
+
+static pointer mapVidMem(int, unsigned long, unsigned long, int);
+static void unmapVidMem(int, pointer, unsigned long);
+
+/*
+ * Check if /dev/mem can be mmap'd. If it can't print a warning when
+ * "warn" is TRUE.
+ */
+static void
+checkDevMem(Bool warn)
+{
+ static Bool devMemChecked = FALSE;
+ int fd;
+ pointer base;
+
+ if (devMemChecked)
+ return;
+ devMemChecked = TRUE;
+
+ if ((fd = open(DEV_MEM, O_RDWR)) >= 0)
+ {
+ /* Try to map a page at the VGA address */
+ base = mmap((caddr_t)0, 4096, PROT_READ | PROT_WRITE,
+ MAP_FLAGS, fd, (off_t)0xA0000 + BUS_BASE);
+
+ if (base != MAP_FAILED)
+ {
+ munmap((caddr_t)base, 4096);
+ devMemFd = fd;
+ useDevMem = TRUE;
+ return;
+ } else {
+ /* This should not happen */
+ if (warn)
+ {
+ xf86Msg(X_WARNING, "checkDevMem: failed to mmap %s (%s)\n",
+ DEV_MEM, strerror(errno));
+ }
+ useDevMem = FALSE;
+ return;
+ }
+ }
+ if (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 pointer
+mapVidMem(int ScreenNum, unsigned long Base, unsigned long Size, int flags)
+{
+ pointer 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, pointer 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 pointer
+xf86MapInfoMap(struct memAccess *memInfoP, pointer 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))
+ == (pointer)-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 (pointer)((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 pointer
+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, pointer 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;
+
+Bool
+xf86EnableIO()
+{
+ if (IoFd >= 0)
+ return TRUE;
+
+ if ((IoFd = open("/dev/io", O_RDWR)) == -1)
+ {
+ xf86Msg(X_WARNING,"xf86EnableIO: "
+ "Failed to open /dev/io for extended I/O\n");
+ return FALSE;
+ }
+ return TRUE;
+}
+
+void
+xf86DisableIO()
+{
+ if (IoFd < 0)
+ return;
+
+ close(IoFd);
+ IoFd = -1;
+ return;
+}
+
+#endif
+
+#if defined(USE_ARC_MMAP) || defined(__arm32__)
+
+Bool
+xf86EnableIO()
+{
+ int fd;
+ pointer base;
+
+ if (ExtendedEnabled)
+ return TRUE;
+
+ if ((fd = open("/dev/ttyC0", O_RDWR)) >= 0) {
+ /* Try to map a page at the pccons I/O space */
+ base = (pointer)mmap((caddr_t)0, 65536, PROT_READ | PROT_WRITE,
+ MAP_FLAGS, fd, (off_t)0x0000);
+
+ if (base != (pointer)-1) {
+ IOPortBase = base;
+ }
+ else {
+ xf86Msg(X_WARNING,"EnableIO: failed to mmap %s (%s)\n",
+ "/dev/ttyC0", strerror(errno));
+ return FALSE;
+ }
+ }
+ else {
+ xf86Msg("EnableIO: failed to open %s (%s)\n",
+ "/dev/ttyC0", strerror(errno));
+ return FALSE;
+ }
+
+ ExtendedEnabled = TRUE;
+
+ return TRUE;
+}
+
+void
+xf86DisableIO()
+{
+ return;
+}
+
+#endif /* USE_ARC_MMAP */
+
+#if 0
+/*
+ * XXX This is here for reference. It needs to be handled differently for the
+ * ND.
+ */
+#if defined(USE_ARC_MMAP) || defined(__arm32__)
+
+#ifdef USE_ARM32_MMAP
+#define DEV_MEM_IOBASE 0x43000000
+#endif
+
+static Bool ScreenEnabled[MAXSCREENS];
+static Bool ExtendedEnabled = FALSE;
+static Bool InitDone = FALSE;
+
+Bool
+xf86EnableIOPorts(ScreenNum)
+int ScreenNum;
+{
+ int i;
+ int fd;
+ pointer base;
+
+#ifdef __arm32__
+ struct memAccess *memInfoP;
+ int *Size;
+#endif
+
+ ScreenEnabled[ScreenNum] = TRUE;
+
+ if (ExtendedEnabled)
+ return TRUE;
+
+#ifdef USE_ARC_MMAP
+ if ((fd = open("/dev/ttyC0", O_RDWR)) >= 0) {
+ /* Try to map a page at the pccons I/O space */
+ base = (pointer)mmap((caddr_t)0, 65536, PROT_READ | PROT_WRITE,
+ MAP_FLAGS, fd, (off_t)0x0000);
+
+ if (base != (pointer)-1) {
+ IOPortBase = base;
+ }
+ else {
+ xf86Msg(X_ERROR,
+ "EnableIOPorts: failed to mmap %s (%s)\n",
+ "/dev/ttyC0", strerror(errno));
+ }
+ }
+ else {
+ xf86Msg(X_ERROR, "EnableIOPorts: failed to open %s (%s)\n",
+ "/dev/ttyC0", strerror(errno));
+ }
+#endif
+
+#ifdef __arm32__
+ IOPortBase = (unsigned int)-1;
+
+ if((memInfoP = checkMapInfo(TRUE, MMIO_REGION)) != NULL)
+ {
+ /*
+ * xf86MapInfoMap maps an offset from the start of video IO
+ * space (e.g. 0x3B0), but IOPortBase is expected to map to
+ * physical address 0x000, so subtract the start of video I/O
+ * space from the result. This is safe for now becase we
+ * actually mmap the start of the page, then the start of video
+ * I/O space is added as an internal offset.
+ */
+ IOPortBase = (unsigned int)xf86MapInfoMap(memInfoP,
+ (caddr_t)0x0, 0L)
+ - memInfoP->memInfo.u.map_info_mmap.internal_offset;
+ ExtendedEnabled = TRUE;
+ return TRUE;
+ }
+#ifdef USE_ARM32_MMAP
+ checkDevMem(TRUE);
+
+ if (devMemFd >= 0 && useDevMem)
+ {
+ base = (pointer)mmap((caddr_t)0, 0x400, PROT_READ | PROT_WRITE,
+ MAP_FLAGS, devMemFd, (off_t)DEV_MEM_IOBASE);
+
+ if (base != (pointer)-1)
+ IOPortBase = (unsigned int)base;
+ }
+
+ if (IOPortBase == (unsigned int)-1)
+ {
+ xf86Msg(X_WARNING,"xf86EnableIOPorts: failed to open mem device or map IO base. \n\
+Make sure you have the Aperture Driver installed, or a kernel built with the INSECURE option\n");
+ return FALSE;
+ }
+#else
+ /* We don't have the IOBASE, so we can't map the address */
+ xf86Msg(X_WARNING,"xf86EnableIOPorts: failed to open mem device or map IO base. \n\
+Try building the server with USE_ARM32_MMAP defined\n");
+ return FALSE;
+#endif
+#endif
+
+ ExtendedEnabled = TRUE;
+
+ return TRUE;
+}
+
+void
+xf86DisableIOPorts(ScreenNum)
+int ScreenNum;
+{
+ int i;
+#ifdef __arm32__
+ struct memAccess *memInfoP;
+#endif
+
+ ScreenEnabled[ScreenNum] = FALSE;
+
+#ifdef __arm32__
+ if((memInfoP = checkMapInfo(FALSE, MMIO_REGION)) != NULL)
+ {
+ xf86MapInfoUnmap(memInfoP, 0);
+ }
+#endif
+
+#ifdef USE_ARM32_MMAP
+ if (!ExtendedEnabled)
+ return;
+
+ for (i = 0; i < MAXSCREENS; i++)
+ if (ScreenEnabled[i])
+ return;
+
+ munmap((caddr_t)IOPortBase, 0x400);
+ IOPortBase = (unsigned int)-1;
+ ExtendedEnabled = FALSE;
+#endif
+
+ return;
+}
+
+#endif /* USE_ARC_MMAP || USE_ARM32_MMAP */
+#endif
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 11:29:16 +0000