579f45fa60
#define COMPAT_PCI_DRIVER(name,data) DATA_SET(pcidevice_set,data) .. to 2.2.x and 3.x if people think it's worth it. Driver writers can do this if it's not defined. (The reason for this is that I'm trying to progressively eliminate use of linker_sets where it hurts modularity and runtime load capability, and these DATA_SET's keep getting in the way.)
161 lines
4.4 KiB
C
161 lines
4.4 KiB
C
/*
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* Copyright (c) 1996, David Greenman
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* 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 AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: cy_pci.c,v 1.13 1999/05/02 20:42:13 peter Exp $
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*/
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/*
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* Cyclades Y PCI serial interface driver
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*/
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#include "pci.h"
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#if NPCI > 0
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#include "opt_cy_pci_fastintr.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 <vm/vm.h>
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#include <vm/pmap.h>
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#include <pci/pcivar.h>
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#include <pci/cy_pcireg.h>
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#ifdef CY_PCI_FASTINTR
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#include <i386/isa/intr_machdep.h>
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#endif
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static const char *cy_probe __P((pcici_t, pcidi_t));
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static void cy_attach __P((pcici_t, int));
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extern int cyattach_common(void *, int); /* Not exactly correct */
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extern void cyintr(int);
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static u_long cy_count;
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static struct pci_device cy_device = {
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"cy",
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cy_probe,
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cy_attach,
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&cy_count,
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NULL
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};
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COMPAT_PCI_DRIVER(cy_pci, cy_device);
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static const char *
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cy_probe(config_id, device_id)
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pcici_t config_id;
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pcidi_t device_id;
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{
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if ((device_id & 0xffff) == CY_VENDORID_CYCLADES &&
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((device_id >> 16) == CY_DEVICEID_CYCLOM_Y_1 ||
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(device_id >> 16) == CY_DEVICEID_CYCLOM_Y_2))
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return ("Cyclades Cyclom-Y Serial Adapter");
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return NULL;
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}
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static void
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cy_attach(config_id, unit)
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pcici_t config_id;
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int unit;
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{
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vm_offset_t paddr;
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void *vaddr;
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u_int32_t ioport;
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int adapter;
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u_char plx_ver;
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ioport = (u_int32_t) pci_conf_read(config_id, CY_PCI_BASE_ADDR1) & ~0x3;
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paddr = pci_conf_read(config_id, CY_PCI_BASE_ADDR2) & ~0xf;
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#if 0
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if (!pci_map_mem(config_id, CY_PCI_BASE_ADDR2, &vaddr, &paddr)) {
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printf("cy%d: couldn't map shared memory\n", unit);
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return;
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};
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#endif
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vaddr = pmap_mapdev(paddr, 0x4000);
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adapter = cyattach_common(vaddr, 1);
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if (adapter < 0) {
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/*
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* No ports found. Release resources and punt.
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*/
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printf("cy%d: no ports found!\n", unit);
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goto fail;
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}
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/*
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* Allocate our interrupt.
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* XXX Using the ISA interrupt handler directly is a bit of a violation
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* since it doesn't actually take the same argument. For PCI, the
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* argument is a void * token, but for ISA it is a unit. Since
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* there is no overlap in PCI/ISA unit numbers for this driver, and
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* since the ISA driver must handle the interrupt anyway, we use
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* the unit number as the token even for PCI.
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*/
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if (
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#ifdef CY_PCI_FASTINTR
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!pci_map_int_right(config_id, (pci_inthand_t *)cyintr,
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(void *)adapter, &tty_imask,
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INTR_EXCL | INTR_FAST) &&
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#endif
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!pci_map_int_right(config_id, (pci_inthand_t *)cyintr,
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(void *)adapter, &tty_imask, 0)) {
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printf("cy%d: couldn't map interrupt\n", unit);
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goto fail;
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}
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/*
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* Enable the "local" interrupt input to generate a
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* PCI interrupt.
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*/
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plx_ver = *((u_char *)vaddr + PLX_VER) & 0x0f;
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switch (plx_ver) {
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case PLX_9050:
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outw(ioport + CY_PLX_9050_ICS,
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inw(ioport + CY_PLX_9050_ICS) | CY_PLX_9050_ICS_IENABLE |
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CY_PLX_9050_ICS_LOCAL_IENABLE);
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break;
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case PLX_9060:
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case PLX_9080:
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default: /* Old board, use PLX_9060 values. */
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outw(ioport + CY_PLX_9060_ICS,
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inw(ioport + CY_PLX_9060_ICS) | CY_PLX_9060_ICS_IENABLE |
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CY_PLX_9060_ICS_LOCAL_IENABLE);
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break;
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}
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return;
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fail:
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/* XXX should release any allocated virtual memory */
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return;
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}
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#endif /* NPCI > 0 */
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