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503 lines
14 KiB
C
503 lines
14 KiB
C
/**************************************************************************
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**
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** $Id: pcisupport.c,v 1.16 1995/07/27 22:04:57 se Exp $
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**
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** Device driver for DEC/INTEL PCI chipsets.
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**
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** FreeBSD
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**
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**-------------------------------------------------------------------------
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**
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** Written for FreeBSD by
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** wolf@cologne.de Wolfgang Stanglmeier
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** se@mi.Uni-Koeln.de Stefan Esser
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**
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**-------------------------------------------------------------------------
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**
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** Copyright (c) 1994,1995 Stefan Esser. All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**
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***************************************************************************
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*/
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#define __PCISUPPORT_C__ "pl4 95/03/21"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/devconf.h>
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#include <machine/cpu.h>
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#include <pci/pcivar.h>
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#include <pci/pcireg.h>
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/*---------------------------------------------------------
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**
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** Intel chipsets for 486 / Pentium processor
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**
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**---------------------------------------------------------
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*/
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static char* chipset_probe (pcici_t tag, pcidi_t type);
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static void chipset_attach(pcici_t tag, int unit);
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static u_long chipset_count;
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struct pci_device chipset_device = {
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"chip",
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chipset_probe,
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chipset_attach,
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&chipset_count,
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NULL
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};
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DATA_SET (pcidevice_set, chipset_device);
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struct condmsg {
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unsigned char port;
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unsigned char mask;
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unsigned char value;
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char flags;
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char *text;
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};
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static char*
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chipset_probe (pcici_t tag, pcidi_t type)
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{
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u_long data;
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unsigned rev;
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switch (type) {
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case 0x04848086:
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rev = (unsigned) pci_conf_read (tag, PCI_CLASS_REG) & 0xff;
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if (rev == 3)
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return ("Intel 82378ZB PCI-ISA bridge");
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return ("Intel 82378IB PCI-ISA bridge");
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case 0x04838086:
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return ("Intel 82424ZX (Saturn) cache DRAM controller");
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case 0x04828086:
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return ("Intel 82375EB PCI-EISA bridge");
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case 0x04868086:
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return ("Intel 82430ZX (Aries)");
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case 0x04a38086:
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rev = (unsigned) pci_conf_read (tag, PCI_CLASS_REG) & 0xff;
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if (rev == 16 || rev == 17)
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return ("Intel 82434NX (Neptune) PCI cache memory controller");
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return ("Intel 82434LX (Mercury) PCI cache memory controller");
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case 0x122d8086:
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return ("Intel 82437 (Triton)");
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case 0x122e8086:
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return ("Intel 82371 (Triton)");
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case 0x12308086:
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return ("Intel 82438 (Triton)");
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case 0x04961039:
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return ("SiS 85c496");
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case 0x04061039:
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return ("SiS 85c501");
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case 0x00081039:
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return ("SiS 85c503");
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case 0x06011039:
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return ("SiS 85c601");
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case 0x00011011:
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return ("DEC 21050 PCI-PCI bridge");
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};
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/*
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** check classes
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*/
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data = pci_conf_read(tag, PCI_CLASS_REG);
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switch (data & (PCI_CLASS_MASK|PCI_SUBCLASS_MASK)) {
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case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_HOST:
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return ("CPU-PCI bridge");
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case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_ISA:
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return ("PCI-ISA bridge");
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case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_EISA:
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return ("PCI-EISA bridge");
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case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_MC:
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return ("PCI-MC bridge");
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case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_PCI:
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return ("PCI-PCI bridge");
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case PCI_CLASS_BRIDGE|PCI_SUBCLASS_BRIDGE_PCMCIA:
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return ("PCI-PCMCIA bridge");
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};
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return ((char*)0);
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}
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#define M_EQ 0 /* mask and return true if equal */
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#define M_NE 1 /* mask and return true if not equal */
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#define TRUE 2 /* don't read config, always true */
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static const struct condmsg conf82424zx[] =
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{
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{ 0x00, 0x00, 0x00, TRUE, "\tCPU: " },
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{ 0x50, 0xe0, 0x00, M_EQ, "486DX" },
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{ 0x50, 0xe0, 0x20, M_EQ, "486SX" },
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{ 0x50, 0xe0, 0x40, M_EQ, "486DX2 or 486DX4" },
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{ 0x50, 0xe0, 0x80, M_EQ, "Overdrive (writeback)" },
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{ 0x00, 0x00, 0x00, TRUE, ", bus=" },
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{ 0x50, 0x03, 0x00, M_EQ, "25MHz" },
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{ 0x50, 0x03, 0x01, M_EQ, "33MHz" },
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{ 0x53, 0x01, 0x01, TRUE, ", CPU->Memory posting "},
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{ 0x53, 0x01, 0x00, M_EQ, "OFF" },
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{ 0x53, 0x01, 0x01, M_EQ, "ON" },
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{ 0x56, 0x30, 0x00, M_NE, "\n\tWarning:" },
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{ 0x56, 0x20, 0x00, M_NE, " NO cache parity!" },
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{ 0x56, 0x10, 0x00, M_NE, " NO DRAM parity!" },
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{ 0x55, 0x04, 0x04, M_EQ, "\n\tWarning: refresh OFF! " },
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{ 0x00, 0x00, 0x00, TRUE, "\n\tCache: " },
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{ 0x52, 0x01, 0x00, M_EQ, "None" },
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{ 0x52, 0xc1, 0x01, M_EQ, "64KB" },
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{ 0x52, 0xc1, 0x41, M_EQ, "128KB" },
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{ 0x52, 0xc1, 0x81, M_EQ, "256KB" },
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{ 0x52, 0xc1, 0xc1, M_EQ, "512KB" },
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{ 0x52, 0x03, 0x01, M_EQ, " writethrough" },
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{ 0x52, 0x03, 0x03, M_EQ, " writeback" },
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{ 0x52, 0x01, 0x01, M_EQ, ", cache clocks=" },
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{ 0x52, 0x05, 0x01, M_EQ, "3-1-1-1" },
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{ 0x52, 0x05, 0x05, M_EQ, "2-1-1-1" },
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{ 0x00, 0x00, 0x00, TRUE, "\n\tDRAM:" },
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{ 0x55, 0x43, 0x00, M_NE, " page mode" },
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{ 0x55, 0x02, 0x02, M_EQ, " code fetch" },
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{ 0x55, 0x43, 0x43, M_EQ, "," },
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{ 0x55, 0x43, 0x42, M_EQ, " and" },
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{ 0x55, 0x40, 0x40, M_EQ, " read" },
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{ 0x55, 0x03, 0x03, M_EQ, " and" },
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{ 0x55, 0x43, 0x41, M_EQ, " and" },
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{ 0x55, 0x01, 0x01, M_EQ, " write" },
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{ 0x55, 0x43, 0x00, M_NE, "," },
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{ 0x00, 0x00, 0x00, TRUE, " memory clocks=" },
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{ 0x55, 0x20, 0x00, M_EQ, "X-2-2-2" },
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{ 0x55, 0x20, 0x20, M_EQ, "X-1-2-1" },
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{ 0x00, 0x00, 0x00, TRUE, "\n\tCPU->PCI: posting " },
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{ 0x53, 0x02, 0x00, M_NE, "ON" },
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{ 0x53, 0x02, 0x00, M_EQ, "OFF" },
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{ 0x00, 0x00, 0x00, TRUE, ", burst mode " },
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{ 0x54, 0x02, 0x00, M_NE, "ON" },
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{ 0x54, 0x02, 0x00, M_EQ, "OFF" },
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{ 0x00, 0x00, 0x00, TRUE, "\n\tPCI->Memory: posting " },
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{ 0x54, 0x01, 0x00, M_NE, "ON" },
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{ 0x54, 0x01, 0x00, M_EQ, "OFF" },
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{ 0x00, 0x00, 0x00, TRUE, "\n" },
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/* end marker */
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{ 0 }
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};
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static const struct condmsg conf82434lx[] =
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{
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{ 0x00, 0x00, 0x00, TRUE, "\tCPU: " },
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{ 0x50, 0xe3, 0x82, M_EQ, "Pentium, 60MHz" },
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{ 0x50, 0xe3, 0x83, M_EQ, "Pentium, 66MHz" },
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{ 0x50, 0xe3, 0xa2, M_EQ, "Pentium, 90MHz" },
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{ 0x50, 0xe3, 0xa3, M_EQ, "Pentium, 100MHz" },
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{ 0x50, 0xc2, 0x82, M_NE, "(unknown)" },
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{ 0x50, 0x04, 0x00, M_EQ, " (primary cache OFF)" },
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{ 0x53, 0x01, 0x01, TRUE, ", CPU->Memory posting "},
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{ 0x53, 0x01, 0x01, M_NE, "OFF" },
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{ 0x53, 0x01, 0x01, M_EQ, "ON" },
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{ 0x53, 0x08, 0x00, M_NE, ", read around write"},
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{ 0x70, 0x04, 0x00, M_EQ, "\n\tWarning: Cache parity disabled!" },
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{ 0x57, 0x20, 0x00, M_NE, "\n\tWarning: DRAM parity mask!" },
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{ 0x57, 0x01, 0x00, M_EQ, "\n\tWarning: refresh OFF! " },
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{ 0x00, 0x00, 0x00, TRUE, "\n\tCache: " },
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{ 0x52, 0x01, 0x00, M_EQ, "None" },
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{ 0x52, 0x81, 0x01, M_EQ, "" },
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{ 0x52, 0xc1, 0x81, M_EQ, "256KB" },
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{ 0x52, 0xc1, 0xc1, M_EQ, "512KB" },
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{ 0x52, 0x03, 0x01, M_EQ, " writethrough" },
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{ 0x52, 0x03, 0x03, M_EQ, " writeback" },
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{ 0x52, 0x01, 0x01, M_EQ, ", cache clocks=" },
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{ 0x52, 0x21, 0x01, M_EQ, "3-2-2-2/4-2-2-2" },
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{ 0x52, 0x21, 0x21, M_EQ, "3-1-1-1" },
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{ 0x52, 0x01, 0x01, M_EQ, "\n\tCache flags: " },
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{ 0x52, 0x11, 0x11, M_EQ, " cache-all" },
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{ 0x52, 0x09, 0x09, M_EQ, " byte-control" },
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{ 0x52, 0x05, 0x05, M_EQ, " powersaver" },
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{ 0x00, 0x00, 0x00, TRUE, "\n\tDRAM:" },
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{ 0x57, 0x10, 0x00, M_EQ, " page mode" },
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{ 0x00, 0x00, 0x00, TRUE, " memory clocks=" },
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{ 0x57, 0xc0, 0x00, M_EQ, "X-4-4-4 (70ns)" },
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{ 0x57, 0xc0, 0x40, M_EQ, "X-4-4-4/X-3-3-3 (60ns)" },
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{ 0x57, 0xc0, 0x80, M_EQ, "???" },
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{ 0x57, 0xc0, 0xc0, M_EQ, "X-3-3-3 (50ns)" },
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{ 0x58, 0x02, 0x02, M_EQ, ", RAS-wait" },
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{ 0x58, 0x01, 0x01, M_EQ, ", CAS-wait" },
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{ 0x00, 0x00, 0x00, TRUE, "\n\tCPU->PCI: posting " },
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{ 0x53, 0x02, 0x02, M_EQ, "ON" },
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{ 0x53, 0x02, 0x00, M_EQ, "OFF" },
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{ 0x00, 0x00, 0x00, TRUE, ", burst mode " },
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{ 0x54, 0x02, 0x00, M_NE, "ON" },
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{ 0x54, 0x02, 0x00, M_EQ, "OFF" },
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{ 0x54, 0x04, 0x00, TRUE, ", PCI clocks=" },
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{ 0x54, 0x04, 0x00, M_EQ, "2-2-2-2" },
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{ 0x54, 0x04, 0x00, M_NE, "2-1-1-1" },
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{ 0x00, 0x00, 0x00, TRUE, "\n\tPCI->Memory: posting " },
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{ 0x54, 0x01, 0x00, M_NE, "ON" },
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{ 0x54, 0x01, 0x00, M_EQ, "OFF" },
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{ 0x00, 0x00, 0x00, TRUE, "\n" },
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/* end marker */
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{ 0 }
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};
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static const struct condmsg conf82378[] =
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{
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{ 0x4d, 0x20, 0x20, M_EQ, "\tCoprocessor errors enabled" },
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{ 0x4d, 0x10, 0x10, M_EQ, "\tMouse function enabled" },
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{ 0x4e, 0x30, 0x10, M_EQ, "\n\tIDE controller: Primary (1F0h-1F7h,3F6h,3F7h)" },
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{ 0x4e, 0x30, 0x30, M_EQ, "\n\tIDE controller: Secondary (170h-177h,376h,377h)" },
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{ 0x4e, 0x28, 0x08, M_EQ, "\n\tFloppy controller: 3F0h,3F1h " },
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{ 0x4e, 0x24, 0x04, M_EQ, "\n\tFloppy controller: 3F2h-3F7h " },
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{ 0x4e, 0x28, 0x28, M_EQ, "\n\tFloppy controller: 370h,371h " },
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{ 0x4e, 0x24, 0x24, M_EQ, "\n\tFloppy controller: 372h-377h " },
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{ 0x4e, 0x02, 0x02, M_EQ, "\n\tKeyboard controller: 60h,62h,64h,66h" },
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{ 0x4e, 0x01, 0x01, M_EQ, "\n\tRTC: 70h-77h" },
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{ 0x4f, 0x80, 0x80, M_EQ, "\n\tConfiguration RAM: 0C00h,0800h-08FFh" },
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{ 0x4f, 0x40, 0x40, M_EQ, "\n\tPort 92: enabled" },
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{ 0x4f, 0x03, 0x00, M_EQ, "\n\tSerial Port A: COM1 (3F8h-3FFh)" },
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{ 0x4f, 0x03, 0x01, M_EQ, "\n\tSerial Port A: COM2 (2F8h-2FFh)" },
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{ 0x4f, 0x0c, 0x00, M_EQ, "\n\tSerial Port B: COM1 (3F8h-3FFh)" },
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{ 0x4f, 0x0c, 0x04, M_EQ, "\n\tSerial Port B: COM2 (2F8h-2FFh)" },
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{ 0x4f, 0x30, 0x00, M_EQ, "\n\tParallel Port: LPT1 (3BCh-3BFh)" },
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{ 0x4f, 0x30, 0x04, M_EQ, "\n\tParallel Port: LPT2 (378h-37Fh)" },
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{ 0x4f, 0x30, 0x20, M_EQ, "\n\tParallel Port: LPT3 (278h-27Fh)" },
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{ 0x00, 0x00, 0x00, TRUE, "\n" },
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/* end marker */
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{ 0 }
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};
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static char confread (pcici_t config_id, int port)
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{
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unsigned long portw = port & ~3;
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unsigned long ports = (port - portw) << 3;
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unsigned long l = pci_conf_read (config_id, portw);
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return (l >> ports);
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}
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static void
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writeconfig (pcici_t config_id, const struct condmsg *tbl)
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{
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while (tbl->text) {
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int cond = 0;
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if (tbl->flags == TRUE) {
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cond = 1;
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} else {
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unsigned char v = (unsigned char) confread(config_id, tbl->port);
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switch (tbl->flags) {
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case M_EQ:
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if ((v & tbl->mask) == tbl->value) cond = 1;
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break;
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case M_NE:
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if ((v & tbl->mask) != tbl->value) cond = 1;
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break;
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}
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}
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if (cond) printf ("%s", tbl->text);
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tbl++;
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}
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}
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static void
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chipset_attach (pcici_t config_id, int unit)
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{
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if (!bootverbose)
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return;
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switch (pci_conf_read (config_id, PCI_ID_REG)) {
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case 0x04838086:
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writeconfig (config_id, conf82424zx);
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break;
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case 0x04a38086:
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writeconfig (config_id, conf82434lx);
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break;
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case 0x04848086:
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writeconfig (config_id, conf82378);
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break;
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case 0x04828086:
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printf ("\t[40] %lx [50] %lx [54] %lx\n",
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pci_conf_read (config_id, 0x40),
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pci_conf_read (config_id, 0x50),
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pci_conf_read (config_id, 0x54));
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break;
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};
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}
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/*---------------------------------------------------------
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**
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** Catchall driver for VGA devices
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**
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** By Garrett Wollman
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** <wollman@halloran-eldar.lcs.mit.edu>
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**
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**---------------------------------------------------------
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*/
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static char* vga_probe (pcici_t tag, pcidi_t type);
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static void vga_attach (pcici_t tag, int unit);
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static u_long vga_count;
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struct pci_device vga_device = {
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"vga",
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vga_probe,
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vga_attach,
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&vga_count,
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NULL
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};
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DATA_SET (pcidevice_set, vga_device);
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static char* vga_probe (pcici_t tag, pcidi_t type)
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{
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int data = pci_conf_read(tag, PCI_CLASS_REG);
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switch (data & PCI_CLASS_MASK) {
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case PCI_CLASS_PREHISTORIC:
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if ((data & PCI_SUBCLASS_MASK)
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!= PCI_SUBCLASS_PREHISTORIC_VGA)
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break;
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case PCI_CLASS_DISPLAY:
|
|
if ((data & PCI_SUBCLASS_MASK)
|
|
== PCI_SUBCLASS_DISPLAY_VGA)
|
|
return "VGA-compatible display device";
|
|
else
|
|
return ("Display device");
|
|
};
|
|
return ((char*)0);
|
|
}
|
|
|
|
static void vga_attach (pcici_t tag, int unit)
|
|
{
|
|
/*
|
|
** If the assigned addresses are remapped,
|
|
** the console driver has to be informed about the new address.
|
|
*/
|
|
#if 0
|
|
vm_offset_t va;
|
|
vm_offset_t pa;
|
|
int reg;
|
|
for (reg = PCI_MAP_REG_START; reg < PCI_MAP_REG_END; reg += 4)
|
|
(void) pci_map_mem (tag, reg, &va, &pa);
|
|
#endif
|
|
}
|
|
|
|
/*---------------------------------------------------------
|
|
**
|
|
** Hook for loadable pci drivers
|
|
**
|
|
**---------------------------------------------------------
|
|
*/
|
|
|
|
static char* lkm_probe (pcici_t tag, pcidi_t type);
|
|
static void lkm_attach (pcici_t tag, int unit);
|
|
static u_long lkm_count;
|
|
|
|
struct pci_device lkm_device = {
|
|
"lkm",
|
|
lkm_probe,
|
|
lkm_attach,
|
|
&lkm_count,
|
|
NULL
|
|
};
|
|
|
|
DATA_SET (pcidevice_set, lkm_device);
|
|
|
|
static char*
|
|
lkm_probe (pcici_t tag, pcidi_t type)
|
|
{
|
|
/*
|
|
** Not yet!
|
|
** (Should try to load a matching driver)
|
|
*/
|
|
return ((char*)0);
|
|
}
|
|
|
|
static void
|
|
lkm_attach (pcici_t tag, int unit)
|
|
{}
|
|
|
|
/*---------------------------------------------------------
|
|
**
|
|
** Devices to ignore
|
|
**
|
|
**---------------------------------------------------------
|
|
*/
|
|
|
|
static char* ign_probe (pcici_t tag, pcidi_t type);
|
|
static void ign_attach (pcici_t tag, int unit);
|
|
static u_long ign_count;
|
|
|
|
struct pci_device ign_device = {
|
|
NULL,
|
|
ign_probe,
|
|
ign_attach,
|
|
&ign_count,
|
|
NULL
|
|
};
|
|
|
|
DATA_SET (pcidevice_set, ign_device);
|
|
|
|
static char*
|
|
ign_probe (pcici_t tag, pcidi_t type)
|
|
{
|
|
switch (type) {
|
|
|
|
case 0x10001042ul: /* wd */
|
|
return ("");
|
|
/* return ("SMC FDC 37c665");*/
|
|
};
|
|
return ((char*)0);
|
|
}
|
|
|
|
static void
|
|
ign_attach (pcici_t tag, int unit)
|
|
{}
|