160 lines
4.4 KiB
C
160 lines
4.4 KiB
C
/*
|
|
* Copyright (c) 1996, David Greenman
|
|
* All rights reserved.
|
|
*
|
|
* 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 unmodified, 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* Cyclades Y PCI serial interface driver
|
|
*/
|
|
|
|
#include "opt_cy_pci_fastintr.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/bus.h>
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <pci/pcivar.h>
|
|
|
|
#include <pci/cy_pcireg.h>
|
|
|
|
#ifdef CY_PCI_FASTINTR
|
|
#include <i386/isa/intr_machdep.h>
|
|
#endif
|
|
|
|
#ifndef COMPAT_OLDPCI
|
|
#error "The cy device requires the old pci compatibility shims"
|
|
#endif
|
|
|
|
static const char *cy_probe __P((pcici_t, pcidi_t));
|
|
static void cy_attach __P((pcici_t, int));
|
|
|
|
extern int cyattach_common(void *, int); /* Not exactly correct */
|
|
extern void cyintr(int);
|
|
|
|
static u_long cy_count;
|
|
|
|
static struct pci_device cy_device = {
|
|
"cy",
|
|
cy_probe,
|
|
cy_attach,
|
|
&cy_count,
|
|
NULL
|
|
};
|
|
COMPAT_PCI_DRIVER(cy_pci, cy_device);
|
|
|
|
static const char *
|
|
cy_probe(config_id, device_id)
|
|
pcici_t config_id;
|
|
pcidi_t device_id;
|
|
{
|
|
device_id &= ~0x00060000;
|
|
if (device_id == 0x0100120e || device_id == 0x0101120e)
|
|
return ("Cyclades Cyclom-Y Serial Adapter");
|
|
return (NULL);
|
|
}
|
|
|
|
static void
|
|
cy_attach(config_id, unit)
|
|
pcici_t config_id;
|
|
int unit;
|
|
{
|
|
vm_offset_t paddr;
|
|
void *vaddr;
|
|
u_int32_t ioport;
|
|
int adapter;
|
|
u_char plx_ver;
|
|
|
|
ioport = (u_int32_t) pci_conf_read(config_id, CY_PCI_BASE_ADDR1) & ~0x3;
|
|
paddr = pci_conf_read(config_id, CY_PCI_BASE_ADDR2) & ~0xf;
|
|
#if 0
|
|
if (!pci_map_mem(config_id, CY_PCI_BASE_ADDR2, &vaddr, &paddr)) {
|
|
printf("cy%d: couldn't map shared memory\n", unit);
|
|
return;
|
|
};
|
|
#endif
|
|
vaddr = pmap_mapdev(paddr, 0x4000);
|
|
|
|
adapter = cyattach_common(vaddr, 1);
|
|
if (adapter < 0) {
|
|
/*
|
|
* No ports found. Release resources and punt.
|
|
*/
|
|
printf("cy%d: no ports found!\n", unit);
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Allocate our interrupt.
|
|
* XXX Using the ISA interrupt handler directly is a bit of a violation
|
|
* since it doesn't actually take the same argument. For PCI, the
|
|
* argument is a void * token, but for ISA it is a unit. Since
|
|
* there is no overlap in PCI/ISA unit numbers for this driver, and
|
|
* since the ISA driver must handle the interrupt anyway, we use
|
|
* the unit number as the token even for PCI.
|
|
*/
|
|
if (
|
|
#ifdef CY_PCI_FASTINTR
|
|
!pci_map_int_right(config_id, (pci_inthand_t *)cyintr,
|
|
(void *)adapter, &tty_imask,
|
|
INTR_EXCL | INTR_FAST) &&
|
|
#endif
|
|
!pci_map_int_right(config_id, (pci_inthand_t *)cyintr,
|
|
(void *)adapter, &tty_imask, 0)) {
|
|
printf("cy%d: couldn't map interrupt\n", unit);
|
|
goto fail;
|
|
}
|
|
|
|
/*
|
|
* Enable the "local" interrupt input to generate a
|
|
* PCI interrupt.
|
|
*/
|
|
plx_ver = *((u_char *)vaddr + PLX_VER) & 0x0f;
|
|
switch (plx_ver) {
|
|
case PLX_9050:
|
|
outw(ioport + CY_PLX_9050_ICS,
|
|
inw(ioport + CY_PLX_9050_ICS) | CY_PLX_9050_ICS_IENABLE |
|
|
CY_PLX_9050_ICS_LOCAL_IENABLE);
|
|
break;
|
|
case PLX_9060:
|
|
case PLX_9080:
|
|
default: /* Old board, use PLX_9060 values. */
|
|
outw(ioport + CY_PLX_9060_ICS,
|
|
inw(ioport + CY_PLX_9060_ICS) | CY_PLX_9060_ICS_IENABLE |
|
|
CY_PLX_9060_ICS_LOCAL_IENABLE);
|
|
break;
|
|
}
|
|
|
|
return;
|
|
|
|
fail:
|
|
/* XXX should release any allocated virtual memory */
|
|
return;
|
|
}
|