159 lines
4.6 KiB
C
159 lines
4.6 KiB
C
/* $NetBSD: iq31244_pci.c,v 1.3 2005/12/11 12:17:09 christos Exp $ */
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/*
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* Copyright (c) 2001, 2002, 2003 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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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, this list of conditions and the following 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* IQ31244 PCI interrupt support.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: iq31244_pci.c,v 1.3 2005/12/11 12:17:09 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <machine/autoconf.h>
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#include <machine/bus.h>
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#include <evbarm/iq80321/iq80321reg.h>
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#include <evbarm/iq80321/iq80321var.h>
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#include <arm/xscale/i80321reg.h>
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#include <arm/xscale/i80321var.h>
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#include <dev/pci/pcidevs.h>
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#include <dev/pci/ppbreg.h>
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int iq80321_pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
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const char *iq80321_pci_intr_string(void *, pci_intr_handle_t);
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const struct evcnt *iq80321_pci_intr_evcnt(void *, pci_intr_handle_t);
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void *iq80321_pci_intr_establish(void *, pci_intr_handle_t,
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int, int (*func)(void *), void *);
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void iq80321_pci_intr_disestablish(void *, void *);
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void
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iq80321_pci_init(pci_chipset_tag_t pc, void *cookie)
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{
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pc->pc_intr_v = cookie; /* the i80321 softc */
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pc->pc_intr_map = iq80321_pci_intr_map;
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pc->pc_intr_string = iq80321_pci_intr_string;
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pc->pc_intr_evcnt = iq80321_pci_intr_evcnt;
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pc->pc_intr_establish = iq80321_pci_intr_establish;
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pc->pc_intr_disestablish = iq80321_pci_intr_disestablish;
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}
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int
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iq80321_pci_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
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{
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struct i80321_softc *sc = pa->pa_pc->pc_intr_v;
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int b, d, f;
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uint32_t busno;
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busno = bus_space_read_4(sc->sc_st, sc->sc_atu_sh, ATU_PCIXSR);
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busno = PCIXSR_BUSNO(busno);
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if (busno == 0xff)
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busno = 0;
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pci_decompose_tag(pa->pa_pc, pa->pa_intrtag, &b, &d, &f);
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/* No mappings for devices not on our bus. */
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if (b != busno)
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goto no_mapping;
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switch (d) {
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case 1: /* PCIX-PCIX bridge */
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/*
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* The S-ATA chips are behind the bridge, and all of
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* the S-ATA interrupts are wired together.
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*/
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*ihp = ICU_INT_XINT(2);
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return (0);
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case 2: /* PCI slot */
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/* All pins are wired together. */
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*ihp = ICU_INT_XINT(3);
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return (0);
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case 3: /* i82546 dual Gig-E */
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if (pa->pa_intrpin == 1 || pa->pa_intrpin == 2) {
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*ihp = ICU_INT_XINT(0);
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return (0);
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}
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goto no_mapping;
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default:
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no_mapping:
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printf("iq80321_pci_intr_map: no mapping for %d/%d/%d/%c\n",
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pa->pa_bus, pa->pa_device, pa->pa_function,
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'@' + pa->pa_intrpin);
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return (1);
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}
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return (0);
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}
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const char *
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iq80321_pci_intr_string(void *v, pci_intr_handle_t ih)
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{
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return (i80321_irqnames[ih]);
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}
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const struct evcnt *
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iq80321_pci_intr_evcnt(void *v, pci_intr_handle_t ih)
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{
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/* XXX For now. */
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return (NULL);
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}
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void *
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iq80321_pci_intr_establish(void *v, pci_intr_handle_t ih, int ipl,
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int (*func)(void *), void *arg)
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{
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return (i80321_intr_establish(ih, ipl, func, arg));
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}
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void
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iq80321_pci_intr_disestablish(void *v, void *cookie)
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{
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i80321_intr_disestablish(cookie);
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}
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