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/* $NetBSD: pci_axppci_33.c,v 1.2 1995/12/24 02:29:43 mycroft Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Jeffrey Hsu
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include <sys/types.h>
#include <sys/param.h>
#include <sys/time.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <vm/vm.h>
#include <dev/isa/isavar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <alpha/pci/lcavar.h>
#include <alpha/pci/pci_axppci_33.h>
#include <alpha/pci/siovar.h>
#include "sio.h"
void *dec_axppci_33_pci_map_int __P((void *, pci_conftag_t,
pci_intr_pin_t, pci_intr_line_t, int,
int (*func)(void *), void *));
void dec_axppci_33_pci_unmap_int __P((void *, void *));
__const struct pci_intr_fns dec_axppci_33_pci_intr_fns = {
dec_axppci_33_pci_map_int,
dec_axppci_33_pci_unmap_int,
};
void *
dec_axppci_33_pci_map_int(lcv, tag, pin, line, level, func, arg)
void *lcv;
pci_conftag_t tag;
pci_intr_pin_t pin;
pci_intr_line_t line;
int level;
int (*func) __P((void *));
void *arg;
{
struct lca_config *lcp = lcv;
int bus, device, pirq;
pci_confreg_t irreg, pirqreg;
u_int8_t pirqline;
if (pin == 0) {
/* No IRQ used. */
return 0;
}
if (pin > 4) {
printf("dec_axppci_33_map_int: bad interrupt pin %d\n", pin);
return NULL;
}
device = PCI_TAG_DEVICE(tag);
switch (device) {
case 6: /* NCR SCSI */
pirq = 3;
break;
case 11: /* slot 1 */
switch (pin) {
case PCI_INTERRUPT_PIN_A:
case PCI_INTERRUPT_PIN_D:
pirq = 0;
break;
case PCI_INTERRUPT_PIN_B:
pirq = 2;
break;
case PCI_INTERRUPT_PIN_C:
pirq = 1;
break;
};
break;
case 12: /* slot 2 */
switch (pin) {
case PCI_INTERRUPT_PIN_A:
case PCI_INTERRUPT_PIN_D:
pirq = 1;
break;
case PCI_INTERRUPT_PIN_B:
pirq = 0;
break;
case PCI_INTERRUPT_PIN_C:
pirq = 2;
break;
};
break;
case 8: /* slot 3 */
switch (pin) {
case PCI_INTERRUPT_PIN_A:
case PCI_INTERRUPT_PIN_D:
pirq = 2;
break;
case PCI_INTERRUPT_PIN_B:
pirq = 1;
break;
case PCI_INTERRUPT_PIN_C:
pirq = 0;
break;
};
break;
default:
printf("dec_axppci_33_pci_map_int: unknown device %d\n",
device);
panic("dec_axppci_33_pci_map_int: bad device number");
}
#define LCA_SIO_DEVICE 7 /* XXX */
pirqreg = PCI_CONF_READ(lcp->lc_conffns, lcp->lc_confarg,
PCI_MAKE_TAG(0, LCA_SIO_DEVICE, 0), 0x60); /* XXX */
#if 0
printf("dec_pci_axppci_33_map_int: device %d pin %c: pirq %d, reg = %x\n",
device, '@' + pin, pirq, pirqreg);
#endif
pirqline = (pirqreg >> (pirq * 8)) & 0xff;
if ((pirqline & 0x80) != 0)
return 0; /* not routed? */
pirqline &= 0xf;
#if 0
printf("dec_pci_axppci_33_map_int: device %d pin %c: mapped to line %d\n",
device, '@' + pin, pirqline);
#endif
#if NSIO
return ISA_INTR_ESTABLISH(&sio_isa_intr_fns, NULL, /* XXX */
pirqline, IST_LEVEL, level, func, arg);
#else
panic("dec_axppci_33_pci_map_int: no sio!");
#endif
}
void
dec_axppci_33_pci_unmap_int(pifa, cookie)
void *pifa;
void *cookie;
{
panic("dec_axppci_33_pci_unmap_int not implemented"); /* XXX */
}
void
pci_axppci_33_pickintr(pcf, pcfa, ppf, ppfa, pifp, pifap)
__const struct pci_conf_fns *pcf;
__const struct pci_pio_fns *ppf;
void *pcfa, *ppfa;
__const struct pci_intr_fns **pifp;
void **pifap;
{
pci_confreg_t sioclass;
int sioII;
/* XXX MAGIC NUMBER */
sioclass = PCI_CONF_READ(pcf, pcfa, PCI_MAKE_TAG(0, LCA_SIO_DEVICE, 0),
PCI_CLASS_REG);
sioII = (sioclass & 0xff) >= 3;
if (!sioII)
printf("WARNING: SIO NOT SIO II... NO BETS...\n");
*pifp = &dec_axppci_33_pci_intr_fns;
*pifap = pcfa; /* XXX assumes apecs_config ptr */
#if NSIO
sio_intr_setup(ppf, ppfa);
set_iointr(&sio_iointr);
#else
panic("pci_axppci_33_pickintr: no I/O interrupt handler (no sio)");
#endif
}
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