/* $NetBSD: pci_2100_a50.c,v 1.32 2002/09/27 15:35:37 provos Exp $ */ /* * Copyright (c) 1995, 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * 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 /* RCS ID & Copyright macro defns */ __KERNEL_RCSID(0, "$NetBSD: pci_2100_a50.c,v 1.32 2002/09/27 15:35:37 provos Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "sio.h" int dec_2100_a50_intr_map __P((struct pci_attach_args *, pci_intr_handle_t *)); const char *dec_2100_a50_intr_string __P((void *, pci_intr_handle_t)); const struct evcnt *dec_2100_a50_intr_evcnt __P((void *, pci_intr_handle_t)); void *dec_2100_a50_intr_establish __P((void *, pci_intr_handle_t, int, int (*func)(void *), void *)); void dec_2100_a50_intr_disestablish __P((void *, void *)); #define APECS_SIO_DEVICE 7 /* XXX */ void pci_2100_a50_pickintr(acp) struct apecs_config *acp; { bus_space_tag_t iot = &acp->ac_iot; pci_chipset_tag_t pc = &acp->ac_pc; pcireg_t sioclass; int sioII; /* XXX MAGIC NUMBER */ sioclass = pci_conf_read(pc, pci_make_tag(pc, 0, 7, 0), PCI_CLASS_REG); sioII = (sioclass & 0xff) >= 3; if (!sioII) printf("WARNING: SIO NOT SIO II... NO BETS...\n"); pc->pc_intr_v = acp; pc->pc_intr_map = dec_2100_a50_intr_map; pc->pc_intr_string = dec_2100_a50_intr_string; pc->pc_intr_evcnt = dec_2100_a50_intr_evcnt; pc->pc_intr_establish = dec_2100_a50_intr_establish; pc->pc_intr_disestablish = dec_2100_a50_intr_disestablish; /* Not supported on 2100 A50. */ pc->pc_pciide_compat_intr_establish = NULL; #if NSIO sio_intr_setup(pc, iot); #else panic("pci_2100_a50_pickintr: no I/O interrupt handler (no sio)"); #endif } int dec_2100_a50_intr_map(pa, ihp) struct pci_attach_args *pa; pci_intr_handle_t *ihp; { pcitag_t bustag = pa->pa_intrtag; int buspin = pa->pa_intrpin; pci_chipset_tag_t pc = pa->pa_pc; int device, pirq; pcireg_t pirqreg; u_int8_t pirqline; #ifndef DIAGNOSTIC pirq = 0; /* XXX gcc -Wuninitialized */ #endif if (buspin == 0) { /* No IRQ used. */ return 1; } if (buspin > 4) { printf("dec_2100_a50_intr_map: bad interrupt pin %d\n", buspin); return 1; } pci_decompose_tag(pc, bustag, NULL, &device, NULL); switch (device) { case 6: /* NCR SCSI */ pirq = 3; break; case 11: /* slot 1 */ case 14: /* slot 3 */ switch (buspin) { 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; #ifdef DIAGNOSTIC default: /* XXX gcc -Wuninitialized */ panic("dec_2100_a50_intr_map bogus PCI pin %d", buspin); #endif }; break; case 12: /* slot 2 */ switch (buspin) { 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; #ifdef DIAGNOSTIC default: /* XXX gcc -Wuninitialized */ panic("dec_2100_a50_intr_map bogus PCI pin %d", buspin); #endif }; break; case 13: /* slot 3 */ switch (buspin) { 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; #ifdef DIAGNOSTIC default: /* XXX gcc -Wuninitialized */ panic("dec_2100_a50_intr_map bogus PCI pin %d", buspin); #endif }; break; default: printf("dec_2100_a50_intr_map: weird device number %d\n", device); return 1; } pirqreg = pci_conf_read(pc, pci_make_tag(pc, 0, APECS_SIO_DEVICE, 0), SIO_PCIREG_PIRQ_RTCTRL); #if 0 printf("pci_2100_a50_intr_map: device %d pin %c: pirq %d, reg = %x\n", device, '@' + buspin, pirq, pirqreg); #endif pirqline = (pirqreg >> (pirq * 8)) & 0xff; if ((pirqline & 0x80) != 0) return 1; pirqline &= 0xf; #if 0 printf("pci_2100_a50_intr_map: device %d pin %c: mapped to line %d\n", device, '@' + buspin, pirqline); #endif *ihp = pirqline; return (0); } const char * dec_2100_a50_intr_string(acv, ih) void *acv; pci_intr_handle_t ih; { #if 0 struct apecs_config *acp = acv; #endif return sio_intr_string(NULL /*XXX*/, ih); } const struct evcnt * dec_2100_a50_intr_evcnt(acv, ih) void *acv; pci_intr_handle_t ih; { #if 0 struct apecs_config *acp = acv; #endif return sio_intr_evcnt(NULL /*XXX*/, ih); } void * dec_2100_a50_intr_establish(acv, ih, level, func, arg) void *acv, *arg; pci_intr_handle_t ih; int level; int (*func) __P((void *)); { #if 0 struct apecs_config *acp = acv; #endif return sio_intr_establish(NULL /*XXX*/, ih, IST_LEVEL, level, func, arg); } void dec_2100_a50_intr_disestablish(acv, cookie) void *acv, *cookie; { #if 0 struct apecs_config *acp = acv; #endif sio_intr_disestablish(NULL /*XXX*/, cookie); }