diff options
Diffstat (limited to 'xorg-server/hw/xfree86/os-support/bus/ix86Pci.c')
| -rw-r--r-- | xorg-server/hw/xfree86/os-support/bus/ix86Pci.c | 718 |
1 files changed, 0 insertions, 718 deletions
diff --git a/xorg-server/hw/xfree86/os-support/bus/ix86Pci.c b/xorg-server/hw/xfree86/os-support/bus/ix86Pci.c deleted file mode 100644 index e54246355..000000000 --- a/xorg-server/hw/xfree86/os-support/bus/ix86Pci.c +++ /dev/null @@ -1,718 +0,0 @@ -/* - * ix86Pci.c - x86 PCI driver - * - * The XFree86 server PCI access functions have been reimplemented as a - * framework that allows each supported platform/OS to have their own - * platform/OS specific PCI driver. - * - * Most of the code of these functions was simply lifted from the - * Intel architecture specifric portion of the original Xfree86 - * PCI code in hw/xfree86/common_hw/xf86_PCI.C... - * - * Gary Barton - * Concurrent Computer Corporation - * garyb@gate.net - */ - -/* - * Copyright 1998 by Concurrent Computer Corporation - * - * 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 Concurrent Computer - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software without specific, written prior - * permission. Concurrent Computer Corporation makes no representations - * about the suitability of this software for any purpose. It is - * provided "as is" without express or implied warranty. - * - * CONCURRENT COMPUTER CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD - * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL CONCURRENT COMPUTER CORPORATION 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. - * - * Copyright 1998 by Metro Link Incorporated - * - * 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 Metro Link - * Incorporated not be used in advertising or publicity pertaining to - * distribution of the software without specific, written prior - * permission. Metro Link Incorporated makes no representations - * about the suitability of this software for any purpose. It is - * provided "as is" without express or implied warranty. - * - * METRO LINK INCORPORATED DISCLAIMS ALL WARRANTIES WITH REGARD - * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL METRO LINK INCORPORATED 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. - * - * This software is derived from the original XFree86 PCI code - * which includes the following copyright notices as well: - * - * Copyright 1995 by Robin Cutshaw <robin@XFree86.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 the above listed copyright holder(s) - * not be used in advertising or publicity pertaining to distribution of - * the software without specific, written prior permission. The above listed - * copyright holder(s) make(s) no representations about the suitability of this - * software for any purpose. It is provided "as is" without express or - * implied warranty. - * - * THE ABOVE LISTED COPYRIGHT HOLDER(S) DISCLAIM(S) ALL WARRANTIES WITH REGARD - * TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) 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. - * - * This code is also based heavily on the code in FreeBSD-current, which was - * written by Wolfgang Stanglmeier, and contains the following copyright: - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ -/* - * Copyright (c) 1999-2003 by The XFree86 Project, Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Except as contained in this notice, the name of the copyright holder(s) - * and author(s) shall not be used in advertising or otherwise to promote - * the sale, use or other dealings in this Software without prior written - * authorization from the copyright holder(s) and author(s). - */ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include <stdio.h> -#include "compiler.h" -#include "xf86.h" -#include "xf86Priv.h" -#include "xf86_OSlib.h" -#include "Pci.h" - -#ifdef PC98 -#define outb(port,data) _outb(port,data) -#define outl(port,data) _outl(port,data) -#define inb(port) _inb(port) -#define inl(port) _inl(port) -#endif - -#define PCI_CFGMECH2_ENABLE_REG 0xCF8 -#ifdef PC98 -#define PCI_CFGMECH2_FORWARD_REG 0xCF9 -#else -#define PCI_CFGMECH2_FORWARD_REG 0xCFA -#endif - -#define PCI_CFGMECH2_MAXDEV 16 - -#define PCI_ADDR_FROM_TAG_CFG1(tag,reg) (PCI_EN | tag | (reg & 0xfc)) -#define PCI_FORWARD_FROM_TAG(tag) PCI_BUS_FROM_TAG(tag) -#define PCI_ENABLE_FROM_TAG(tag) (0xf0 | (((tag) & 0x00000700) >> 7)) -#define PCI_ADDR_FROM_TAG_CFG2(tag,reg) (0xc000 | (((tag) & 0x0000f800) >> 3) \ - | (reg & 0xfc)) - -/* - * Intel x86 platform specific PCI access functions - */ -#if 0 -static CARD32 ix86PciReadLongSetup(PCITAG tag, int off); -static void ix86PciWriteLongSetup(PCITAG, int off, CARD32 val); -static void ix86PciSetBitsLongSetup(PCITAG, int off, CARD32 mask, CARD32 val); -static CARD32 ix86PciReadLongCFG1(PCITAG tag, int off); -static void ix86PciWriteLongCFG1(PCITAG, int off, CARD32 val); -static void ix86PciSetBitsLongCFG1(PCITAG, int off, CARD32 mask, CARD32 val); -static CARD32 ix86PciReadLongCFG2(PCITAG tag, int off); -static void ix86PciWriteLongCFG2(PCITAG, int off, CARD32 val); -static void ix86PciSetBitsLongCFG2(PCITAG, int off, CARD32 mask, CARD32 val); -#endif - -static pciBusFuncs_t ix86Funcs0 = { -#if 0 -/* pciReadLong */ ix86PciReadLongSetup, -/* pciWriteLong */ ix86PciWriteLongSetup, -/* pciSetBitsLong */ ix86PciSetBitsLongSetup, -/* pciAddrHostToBus */ pciAddrNOOP, -#endif -/* pciAddrBusToHost */ pciAddrNOOP -}; - -static pciBusFuncs_t ix86Funcs1 = { -#if 0 -/* pciReadLong */ ix86PciReadLongCFG1, -/* pciWriteLong */ ix86PciWriteLongCFG1, -/* pciSetBitsLong */ ix86PciSetBitsLongCFG1, -/* pciAddrHostToBus */ pciAddrNOOP, -#endif -/* pciAddrBusToHost */ pciAddrNOOP -}; - -static pciBusFuncs_t ix86Funcs2 = { -#if 0 -/* pciReadLong */ ix86PciReadLongCFG2, -/* pciWriteLong */ ix86PciWriteLongCFG2, -/* pciSetBitsLong */ ix86PciSetBitsLongCFG2, -/* pciAddrHostToBus */ pciAddrNOOP, -#endif -/* pciAddrBusToHost */ pciAddrNOOP -}; - -static pciBusInfo_t ix86Pci0 = { -/* configMech */ PCI_CFG_MECH_UNKNOWN, /* Set by ix86PciInit() */ -/* numDevices */ 0, /* Set by ix86PciInit() */ -/* secondary */ FALSE, -/* primary_bus */ 0, -/* funcs */ &ix86Funcs0, /* Set by ix86PciInit() */ -/* pciBusPriv */ NULL, -/* bridge */ NULL -}; - -_X_EXPORT pointer -xf86MapDomainMemory(int ScreenNum, int Flags, struct pci_device *dev, - ADDRESS Base, unsigned long Size) -{ - return xf86MapVidMem(ScreenNum, Flags, Base, Size); -} - -IOADDRESS -xf86MapLegacyIO(struct pci_device *dev) -{ - (void)dev; - return 0; -} - -static Bool -ix86PciBusCheck(void) -{ -#if 0 - PCITAG tag; - CARD32 id, class; - CARD8 device; - - for (device = 0; device < ix86Pci0.numDevices; device++) { - tag = PCI_MAKE_TAG(0, device, 0); - id = (*ix86Pci0.funcs->pciReadLong)(tag, PCI_ID_REG); - - if ((CARD16)(id + 1U) <= (CARD16)1UL) - continue; - - /* The rest of this is inspired by the Linux kernel */ - class = (*ix86Pci0.funcs->pciReadLong)(tag, PCI_CLASS_REG); - - /* Ignore revision id and programming interface */ - switch (class >> 16) { - case (PCI_CLASS_PREHISTORIC << 8) | PCI_SUBCLASS_PREHISTORIC_MISC: - /* Check for vendors of known buggy chipsets */ - id &= 0x0000ffff; - if ((id == PCI_VENDOR_INTEL) || (id == PCI_VENDOR_COMPAQ)) - return TRUE; - continue; - - case (PCI_CLASS_PREHISTORIC << 8) | PCI_SUBCLASS_PREHISTORIC_VGA: - case (PCI_CLASS_DISPLAY << 8) | PCI_SUBCLASS_DISPLAY_VGA: - case (PCI_CLASS_BRIDGE << 8) | PCI_SUBCLASS_BRIDGE_HOST: - return TRUE; - - default: - break; - } - } -#endif - return FALSE; -} - -static -void ix86PciSelectCfgmech(void) -{ - static Bool beenhere = FALSE; - CARD32 mode1Res1 = 0, mode1Res2 = 0, oldVal1 = 0; - CARD8 mode2Res1 = 0, mode2Res2 = 0, oldVal2 = 0; - int stages = 0; - - if (beenhere) - return; /* Been there, done that */ - - beenhere = TRUE; - - /* - * Determine if motherboard chipset supports PCI Config Mech 1 or 2 - * We rely on xf86Info.pciFlags to tell which mechanisms to try.... - */ - switch (xf86Info.pciFlags) { - case PCIOsConfig: - case PCIProbe1: - if (!xf86EnableIO()) - return; - - xf86MsgVerb(X_INFO, 2, - "PCI: Probing config type using method 1\n"); - oldVal1 = inl(PCI_CFGMECH1_ADDRESS_REG); - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("Checking config type 1:\n" - "\tinitial value of MODE1_ADDR_REG is 0x%08x\n", oldVal1); - ErrorF("\tChecking that all bits in mask 0x7f000000 are clear\n"); - } -#endif - - /* Assuming config type 1 to start with */ - if ((oldVal1 & 0x7f000000) == 0) { - - stages |= 0x01; - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("\tValue indicates possibly config type 1\n"); - ErrorF("\tWriting 32-bit value 0x%08x to MODE1_ADDR_REG\n", PCI_EN); -#if 0 - ErrorF("\tWriting 8-bit value 0x00 to MODE1_ADDR_REG + 3\n"); -#endif - } -#endif - - ix86Pci0.configMech = PCI_CFG_MECH_1; - ix86Pci0.numDevices = PCI_CFGMECH1_MAXDEV; - ix86Pci0.funcs = &ix86Funcs1; - - outl(PCI_CFGMECH1_ADDRESS_REG, PCI_EN); - -#if 0 - /* - * This seems to cause some Neptune-based PCI machines to switch - * from config type 1 to config type 2 - */ - outb(PCI_CFGMECH1_ADDRESS_REG + 3, 0); -#endif - mode1Res1 = inl(PCI_CFGMECH1_ADDRESS_REG); - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("\tValue read back from MODE1_ADDR_REG is 0x%08x\n", - mode1Res1); - ErrorF("\tRestoring original contents of MODE1_ADDR_REG\n"); - } -#endif - - outl(PCI_CFGMECH1_ADDRESS_REG, oldVal1); - - if (mode1Res1) { - - stages |= 0x02; - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("\tValue read back is non-zero, and indicates possible" - " config type 1\n"); - } -#endif - - if (ix86PciBusCheck()) { - -#ifdef DEBUGPCI - if (xf86Verbose > 2) - ErrorF("\tBus check Confirms this: "); -#endif - - xf86MsgVerb(X_INFO, 2, "PCI: Config type is 1\n"); - xf86MsgVerb(X_INFO, 3, - "PCI: stages = 0x%02x, oldVal1 = 0x%08lx, mode1Res1" - " = 0x%08lx\n", stages, (unsigned long)oldVal1, - (unsigned long)mode1Res1); - return; - } - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("\tBus check fails to confirm this, continuing type 1" - " check ...\n"); - } -#endif - - } - - stages |= 0x04; - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("\tWriting 0xff000001 to MODE1_ADDR_REG\n"); - } -#endif - outl(PCI_CFGMECH1_ADDRESS_REG, 0xff000001); - mode1Res2 = inl(PCI_CFGMECH1_ADDRESS_REG); - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("\tValue read back from MODE1_ADDR_REG is 0x%08x\n", - mode1Res2); - ErrorF("\tRestoring original contents of MODE1_ADDR_REG\n"); - } -#endif - - outl(PCI_CFGMECH1_ADDRESS_REG, oldVal1); - - if ((mode1Res2 & 0x80000001) == 0x80000000) { - - stages |= 0x08; - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("\tValue read back has only the msb set\n" - "\tThis indicates possible config type 1\n"); - } -#endif - - if (ix86PciBusCheck()) { - -#ifdef DEBUGPCI - if (xf86Verbose > 2) - ErrorF("\tBus check Confirms this: "); -#endif - - xf86MsgVerb(X_INFO, 2, "PCI: Config type is 1\n"); - xf86MsgVerb(X_INFO, 3, - "PCI: stages = 0x%02x, oldVal1 = 0x%08lx,\n" - "\tmode1Res1 = 0x%08lx, mode1Res2 = 0x%08lx\n", - stages, (unsigned long)oldVal1, - (unsigned long)mode1Res1, (unsigned long)mode1Res2); - return; - } - -#ifdef DEBUGPCI - if (xf86Verbose > 2) { - ErrorF("\tBus check fails to confirm this.\n"); - } -#endif - - } - } - - xf86MsgVerb(X_INFO, 3, "PCI: Standard check for type 1 failed.\n"); - xf86MsgVerb(X_INFO, 3, "PCI: stages = 0x%02x, oldVal1 = 0x%08lx,\n" - "\tmode1Res1 = 0x%08lx, mode1Res2 = 0x%08lx\n", - stages, (unsigned long)oldVal1, (unsigned long)mode1Res1, - (unsigned long)mode1Res2); - - /* Try config type 2 */ - oldVal2 = inb(PCI_CFGMECH2_ENABLE_REG); - if ((oldVal2 & 0xf0) == 0) { - ix86Pci0.configMech = PCI_CFG_MECH_2; - ix86Pci0.numDevices = PCI_CFGMECH2_MAXDEV; - ix86Pci0.funcs = &ix86Funcs2; - - outb(PCI_CFGMECH2_ENABLE_REG, 0x0e); - mode2Res1 = inb(PCI_CFGMECH2_ENABLE_REG); - outb(PCI_CFGMECH2_ENABLE_REG, oldVal2); - - if (mode2Res1 == 0x0e) { - if (ix86PciBusCheck()) { - xf86MsgVerb(X_INFO, 2, "PCI: Config type is 2\n"); - return; - } - } - } - break; /* } */ - - case PCIProbe2: /* { */ - if (!xf86EnableIO()) - return; - - /* The scanpci-style detection method */ - - xf86MsgVerb(X_INFO, 2, "PCI: Probing config type using method 2\n"); - - outb(PCI_CFGMECH2_ENABLE_REG, 0x00); - outb(PCI_CFGMECH2_FORWARD_REG, 0x00); - mode2Res1 = inb(PCI_CFGMECH2_ENABLE_REG); - mode2Res2 = inb(PCI_CFGMECH2_FORWARD_REG); - - if (mode2Res1 == 0 && mode2Res2 == 0) { - xf86MsgVerb(X_INFO, 2, "PCI: Config type is 2\n"); - ix86Pci0.configMech = PCI_CFG_MECH_2; - ix86Pci0.numDevices = PCI_CFGMECH2_MAXDEV; - ix86Pci0.funcs = &ix86Funcs2; - return; - } - - oldVal1 = inl(PCI_CFGMECH1_ADDRESS_REG); - outl(PCI_CFGMECH1_ADDRESS_REG, PCI_EN); - mode1Res1 = inl(PCI_CFGMECH1_ADDRESS_REG); - outl(PCI_CFGMECH1_ADDRESS_REG, oldVal1); - if (mode1Res1 == PCI_EN) { - xf86MsgVerb(X_INFO, 2, "PCI: Config type is 1\n"); - ix86Pci0.configMech = PCI_CFG_MECH_1; - ix86Pci0.numDevices = PCI_CFGMECH1_MAXDEV; - ix86Pci0.funcs = &ix86Funcs1; - return; - } - break; /* } */ - - case PCIForceConfig1: - if (!xf86EnableIO()) - return; - - xf86MsgVerb(X_INFO, 2, "PCI: Forcing config type 1\n"); - - ix86Pci0.configMech = PCI_CFG_MECH_1; - ix86Pci0.numDevices = PCI_CFGMECH1_MAXDEV; - ix86Pci0.funcs = &ix86Funcs1; - return; - - case PCIForceConfig2: - if (!xf86EnableIO()) - return; - - xf86MsgVerb(X_INFO, 2, "PCI: Forcing config type 2\n"); - - ix86Pci0.configMech = PCI_CFG_MECH_2; - ix86Pci0.numDevices = PCI_CFGMECH2_MAXDEV; - ix86Pci0.funcs = &ix86Funcs2; - return; - - case PCIForceNone: - break; - } - - /* No PCI found */ - ix86Pci0.configMech = PCI_CFG_MECH_UNKNOWN; - xf86MsgVerb(X_INFO, 2, "PCI: No PCI bus found or probed for\n"); -} - -#if 0 -static pciTagRec -ix86PcibusTag(CARD8 bus, CARD8 cardnum, CARD8 func) -{ - pciTagRec tag; - - tag.cfg1 = 0; - - if (func > 7 || cardnum >= pciBusInfo[bus]->numDevices) - return tag; - - switch (ix86Pci0.configMech) { - case PCI_CFG_MECH_1: - tag.cfg1 = PCI_EN | ((CARD32)bus << 16) | - ((CARD32)cardnum << 11) | - ((CARD32)func << 8); - break; - - case PCI_CFG_MECH_2: - tag.cfg2.port = 0xc000 | ((CARD16)cardnum << 8); - tag.cfg2.enable = 0xf0 | (func << 1); - tag.cfg2.forward = bus; - break; - } - - return tag; -} -#endif - -#if 0 -static CARD32 -ix86PciReadLongSetup(PCITAG Tag, int reg) -{ - ix86PciSelectCfgmech(); - return (*ix86Pci0.funcs->pciReadLong)(Tag,reg); -} - -static CARD32 -ix86PciReadLongCFG1(PCITAG Tag, int reg) -{ - CARD32 addr, data = 0; - -#ifdef DEBUGPCI - ErrorF("ix86PciReadLong 0x%lx, %d\n", Tag, reg); -#endif - - addr = PCI_ADDR_FROM_TAG_CFG1(Tag,reg); - outl(PCI_CFGMECH1_ADDRESS_REG, addr); - data = inl(PCI_CFGMECH1_DATA_REG); - outl(PCI_CFGMECH1_ADDRESS_REG, 0); - -#ifdef DEBUGPCI - ErrorF("ix86PciReadLong 0x%lx\n", data); -#endif - - return data; -} - -static CARD32 -ix86PciReadLongCFG2(PCITAG Tag, int reg) -{ - CARD32 addr, data = 0; - CARD8 forward, enable; - -#ifdef DEBUGPCI - ErrorF("ix86PciReadLong 0x%lx, %d\n", Tag, reg); -#endif - - forward = PCI_FORWARD_FROM_TAG(Tag); - enable = PCI_ENABLE_FROM_TAG(Tag); - addr = PCI_ADDR_FROM_TAG_CFG2(Tag,reg); - - outb(PCI_CFGMECH2_ENABLE_REG, enable); - outb(PCI_CFGMECH2_FORWARD_REG, forward); - data = inl((CARD16)addr); - outb(PCI_CFGMECH2_ENABLE_REG, 0); - outb(PCI_CFGMECH2_FORWARD_REG, 0); - -#ifdef DEBUGPCI - ErrorF("ix86PciReadLong 0x%lx\n", data); -#endif - - return data; -} - -static void -ix86PciWriteLongSetup(PCITAG Tag, int reg, CARD32 data) -{ - ix86PciSelectCfgmech(); - (*ix86Pci0.funcs->pciWriteLong)(Tag,reg,data); -} - -static void -ix86PciWriteLongCFG1(PCITAG Tag, int reg, CARD32 data) -{ - CARD32 addr; - - addr = PCI_ADDR_FROM_TAG_CFG1(Tag,reg); - outl(PCI_CFGMECH1_ADDRESS_REG, addr); - outl(PCI_CFGMECH1_DATA_REG, data); - outl(PCI_CFGMECH1_ADDRESS_REG, 0); -} - -static void -ix86PciWriteLongCFG2(PCITAG Tag, int reg, CARD32 data) -{ - CARD32 addr; - CARD8 forward, enable; - - forward = PCI_FORWARD_FROM_TAG(Tag); - enable = PCI_ENABLE_FROM_TAG(Tag); - addr = PCI_ADDR_FROM_TAG_CFG2(Tag,reg); - - outb(PCI_CFGMECH2_ENABLE_REG, enable); - outb(PCI_CFGMECH2_FORWARD_REG, forward); - outl((CARD16)addr, data); - outb(PCI_CFGMECH2_ENABLE_REG, 0); - outb(PCI_CFGMECH2_FORWARD_REG, 0); -} - -static void -ix86PciSetBitsLongSetup(PCITAG Tag, int reg, CARD32 mask, CARD32 val) -{ - ix86PciSelectCfgmech(); - (*ix86Pci0.funcs->pciSetBitsLong)(Tag,reg,mask,val); -} - -static void -ix86PciSetBitsLongCFG1(PCITAG Tag, int reg, CARD32 mask, CARD32 val) -{ - CARD32 addr, data = 0; - -#ifdef DEBUGPCI - ErrorF("ix86PciSetBitsLong 0x%lx, %d\n", Tag, reg); -#endif - - addr = PCI_ADDR_FROM_TAG_CFG1(Tag,reg); - outl(PCI_CFGMECH1_ADDRESS_REG, addr); - data = inl(PCI_CFGMECH1_DATA_REG); - data = (data & ~mask) | (val & mask); - outl(PCI_CFGMECH1_DATA_REG, data); - outl(PCI_CFGMECH1_ADDRESS_REG, 0); -} - -static void -ix86PciSetBitsLongCFG2(PCITAG Tag, int reg, CARD32 mask, CARD32 val) -{ - CARD32 addr, data = 0; - CARD8 enable, forward; - -#ifdef DEBUGPCI - ErrorF("ix86PciSetBitsLong 0x%lx, %d\n", Tag, reg); -#endif - - forward = PCI_FORWARD_FROM_TAG(Tag); - enable = PCI_ENABLE_FROM_TAG(Tag); - addr = PCI_ADDR_FROM_TAG_CFG2(Tag,reg); - - outb(PCI_CFGMECH2_ENABLE_REG, enable); - outb(PCI_CFGMECH2_FORWARD_REG, forward); - data = inl((CARD16)addr); - data = (data & ~mask) | (val & mask); - outl((CARD16)addr, data); - outb(PCI_CFGMECH2_ENABLE_REG, 0); - outb(PCI_CFGMECH2_FORWARD_REG, 0); -} -#endif - -void -ix86PciInit() -{ - /* Initialize pciBusInfo[] array and function pointers */ - pciNumBuses = 1; - pciBusInfo[0] = &ix86Pci0; - - /* Make sure that there is a PCI bus present. */ - ix86PciSelectCfgmech(); - if (ix86Pci0.configMech == PCI_CFG_MECH_UNKNOWN) { - pciNumBuses = 0; - pciBusInfo[0] = NULL; - } -} |