347934fa63
this problem put these lines back in. While they should be unnecessary, they appear to be sometimes necessary. Reviewed in concept: dfr Approved by: re (scottl@)
294 lines
8.4 KiB
C
294 lines
8.4 KiB
C
/* $NetBSD: puc.c,v 1.7 2000/07/29 17:43:38 jlam Exp $ */
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/*-
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* Copyright (c) 2002 JF Hay. All rights reserved.
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* Copyright (c) 2000 M. Warner Losh. 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 unmodified, this list of conditions, and the following
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* 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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*
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* Copyright (c) 1996, 1998, 1999
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* Christopher G. Demetriou. 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_puc.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/bus.h>
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#include <sys/conf.h>
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#include <sys/malloc.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#define PUC_ENTRAILS 1
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#include <dev/puc/pucvar.h>
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extern const struct puc_device_description puc_devices[];
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int puc_config_win877(struct puc_softc *);
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static const struct puc_device_description *
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puc_find_description(uint32_t vend, uint32_t prod, uint32_t svend,
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uint32_t sprod)
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{
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int i;
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#define checkreg(val, index) \
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(((val) & puc_devices[i].rmask[(index)]) == puc_devices[i].rval[(index)])
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for (i = 0; puc_devices[i].name != NULL; i++) {
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if (checkreg(vend, PUC_REG_VEND) &&
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checkreg(prod, PUC_REG_PROD) &&
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checkreg(svend, PUC_REG_SVEND) &&
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checkreg(sprod, PUC_REG_SPROD))
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return (&puc_devices[i]);
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}
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#undef checkreg
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return (NULL);
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}
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static int
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puc_pci_probe(device_t dev)
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{
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uint32_t v1, v2, d1, d2;
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const struct puc_device_description *desc;
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if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0)
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return (ENXIO);
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v1 = pci_read_config(dev, PCIR_VENDOR, 2);
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d1 = pci_read_config(dev, PCIR_DEVICE, 2);
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v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
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d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
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desc = puc_find_description(v1, d1, v2, d2);
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if (desc == NULL)
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return (ENXIO);
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device_set_desc(dev, desc->name);
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return (0);
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}
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static int
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puc_pci_attach(device_t dev)
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{
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uint32_t v1, v2, d1, d2;
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v1 = pci_read_config(dev, PCIR_VENDOR, 2);
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d1 = pci_read_config(dev, PCIR_DEVICE, 2);
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v2 = pci_read_config(dev, PCIR_SUBVEND_0, 2);
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d2 = pci_read_config(dev, PCIR_SUBDEV_0, 2);
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return (puc_attach(dev, puc_find_description(v1, d1, v2, d2)));
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}
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static device_method_t puc_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, puc_pci_probe),
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DEVMETHOD(device_attach, puc_pci_attach),
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DEVMETHOD(bus_alloc_resource, puc_alloc_resource),
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DEVMETHOD(bus_release_resource, puc_release_resource),
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DEVMETHOD(bus_get_resource, puc_get_resource),
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DEVMETHOD(bus_read_ivar, puc_read_ivar),
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DEVMETHOD(bus_setup_intr, puc_setup_intr),
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DEVMETHOD(bus_teardown_intr, puc_teardown_intr),
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DEVMETHOD(bus_print_child, bus_generic_print_child),
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DEVMETHOD(bus_driver_added, bus_generic_driver_added),
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{ 0, 0 }
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};
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static driver_t puc_pci_driver = {
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"puc",
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puc_pci_methods,
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sizeof(struct puc_softc),
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};
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DRIVER_MODULE(puc, pci, puc_pci_driver, puc_devclass, 0, 0);
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DRIVER_MODULE(puc, cardbus, puc_pci_driver, puc_devclass, 0, 0);
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#define rdspio(indx) (bus_space_write_1(bst, bsh, efir, indx), \
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bus_space_read_1(bst, bsh, efdr))
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#define wrspio(indx,data) (bus_space_write_1(bst, bsh, efir, indx), \
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bus_space_write_1(bst, bsh, efdr, data))
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#ifdef PUC_DEBUG
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static void
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puc_print_win877(bus_space_tag_t bst, bus_space_handle_t bsh, u_int efir,
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u_int efdr)
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{
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u_char cr00, cr01, cr04, cr09, cr0d, cr14, cr15, cr16, cr17;
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u_char cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32;
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cr00 = rdspio(0x00);
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cr01 = rdspio(0x01);
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cr04 = rdspio(0x04);
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cr09 = rdspio(0x09);
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cr0d = rdspio(0x0d);
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cr14 = rdspio(0x14);
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cr15 = rdspio(0x15);
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cr16 = rdspio(0x16);
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cr17 = rdspio(0x17);
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cr18 = rdspio(0x18);
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cr19 = rdspio(0x19);
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cr24 = rdspio(0x24);
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cr25 = rdspio(0x25);
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cr28 = rdspio(0x28);
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cr2c = rdspio(0x2c);
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cr31 = rdspio(0x31);
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cr32 = rdspio(0x32);
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printf("877T: cr00 %x, cr01 %x, cr04 %x, cr09 %x, cr0d %x, cr14 %x, "
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"cr15 %x, cr16 %x, cr17 %x, cr18 %x, cr19 %x, cr24 %x, cr25 %x, "
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"cr28 %x, cr2c %x, cr31 %x, cr32 %x\n", cr00, cr01, cr04, cr09,
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cr0d, cr14, cr15, cr16, cr17,
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cr18, cr19, cr24, cr25, cr28, cr2c, cr31, cr32);
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}
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#endif
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int
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puc_config_win877(struct puc_softc *sc)
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{
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u_char val;
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u_int efir, efdr;
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bus_space_tag_t bst;
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bus_space_handle_t bsh;
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struct resource *res;
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res = sc->sc_bar_mappings[0].res;
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bst = rman_get_bustag(res);
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bsh = rman_get_bushandle(res);
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/* configure the first W83877TF */
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bus_space_write_1(bst, bsh, 0x250, 0x89);
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efir = 0x251;
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efdr = 0x252;
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val = rdspio(0x09) & 0x0f;
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if (val != 0x0c) {
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printf("conf_win877: Oops not a W83877TF\n");
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return (ENXIO);
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}
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#ifdef PUC_DEBUG
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printf("before: ");
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puc_print_win877(bst, bsh, efir, efdr);
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#endif
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val = rdspio(0x16);
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val |= 0x04;
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wrspio(0x16, val);
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val &= ~0x04;
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wrspio(0x16, val);
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wrspio(0x24, 0x2e8 >> 2);
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wrspio(0x25, 0x2f8 >> 2);
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wrspio(0x17, 0x03);
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wrspio(0x28, 0x43);
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#ifdef PUC_DEBUG
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printf("after: ");
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puc_print_win877(bst, bsh, efir, efdr);
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#endif
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bus_space_write_1(bst, bsh, 0x250, 0xaa);
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/* configure the second W83877TF */
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bus_space_write_1(bst, bsh, 0x3f0, 0x87);
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bus_space_write_1(bst, bsh, 0x3f0, 0x87);
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efir = 0x3f0;
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efdr = 0x3f1;
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val = rdspio(0x09) & 0x0f;
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if (val != 0x0c) {
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printf("conf_win877: Oops not a W83877TF\n");
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return(ENXIO);
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}
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#ifdef PUC_DEBUG
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printf("before: ");
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puc_print_win877(bst, bsh, efir, efdr);
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#endif
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val = rdspio(0x16);
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val |= 0x04;
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wrspio(0x16, val);
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val &= ~0x04;
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wrspio(0x16, val);
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wrspio(0x24, 0x3e8 >> 2);
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wrspio(0x25, 0x3f8 >> 2);
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wrspio(0x17, 0x03);
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wrspio(0x28, 0x43);
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#ifdef PUC_DEBUG
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printf("after: ");
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puc_print_win877(bst, bsh, efir, efdr);
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#endif
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bus_space_write_1(bst, bsh, 0x3f0, 0xaa);
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return (0);
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}
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#undef rdspio
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#undef wrspio
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