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/*
* 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 "pci.h"
#if NPCI > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <pci/pcivar.h>
#include <pci/cy_pcireg.h>
static 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
};
DATA_SET(pcidevice_set, cy_device);
static char *
cy_probe(config_id, device_id)
pcici_t config_id;
pcidi_t device_id;
{
if ((device_id & 0xffff) == CY_VENDORID_CYCLADES &&
((device_id >> 16) == CY_DEVICEID_CYCLOM_Y_1 ||
(device_id >> 16) == CY_DEVICEID_CYCLOM_Y_2))
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;
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!", 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 (!pci_map_int(config_id, (pci_inthand_t *)cyintr, (void *)adapter, &tty_imask)) {
printf("cy%d: couldn't map interrupt\n", unit);
goto fail;
}
/*
* Enable the "local" interrupt input to generate a
* PCI interrupt.
*/
outw(ioport + CY_PLX_ICS, inw(CY_PLX_ICS) |
CY_PLX_ICS_IENABLE | CY_PLX_ICS_LOCAL_IENABLE);
return;
fail:
/* XXX should release any allocated virtual memory */
return;
}
#endif /* NPCI > 0 */
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