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necpb.c revision 1.29.40.1
      1  1.29.40.1       mjf /*	$NetBSD: necpb.c,v 1.29.40.1 2008/04/03 12:42:11 mjf Exp $	*/
      2        1.1      soda 
      3        1.1      soda /*-
      4        1.1      soda  * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
      5        1.1      soda  * All rights reserved.
      6        1.1      soda  *
      7        1.1      soda  * This code is derived from software contributed to The NetBSD Foundation
      8        1.1      soda  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9        1.1      soda  * NASA Ames Research Center.
     10        1.1      soda  *
     11        1.1      soda  * Redistribution and use in source and binary forms, with or without
     12        1.1      soda  * modification, are permitted provided that the following conditions
     13        1.1      soda  * are met:
     14        1.1      soda  * 1. Redistributions of source code must retain the above copyright
     15        1.1      soda  *    notice, this list of conditions and the following disclaimer.
     16        1.1      soda  * 2. Redistributions in binary form must reproduce the above copyright
     17        1.1      soda  *    notice, this list of conditions and the following disclaimer in the
     18        1.1      soda  *    documentation and/or other materials provided with the distribution.
     19        1.1      soda  * 3. All advertising materials mentioning features or use of this software
     20        1.1      soda  *    must display the following acknowledgement:
     21        1.1      soda  *	This product includes software developed by the NetBSD
     22        1.1      soda  *	Foundation, Inc. and its contributors.
     23        1.1      soda  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24        1.1      soda  *    contributors may be used to endorse or promote products derived
     25        1.1      soda  *    from this software without specific prior written permission.
     26        1.1      soda  *
     27        1.1      soda  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28        1.1      soda  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29        1.1      soda  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30        1.1      soda  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31        1.1      soda  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32        1.1      soda  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33        1.1      soda  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34        1.1      soda  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35        1.1      soda  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36        1.1      soda  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37        1.1      soda  * POSSIBILITY OF SUCH DAMAGE.
     38        1.1      soda  */
     39        1.1      soda 
     40        1.1      soda /*
     41        1.1      soda  * Copyright (c) 1996 Christopher G. Demetriou.  All rights reserved.
     42        1.1      soda  * Copyright (c) 1994 Charles M. Hannum.  All rights reserved.
     43        1.1      soda  *
     44        1.1      soda  * Redistribution and use in source and binary forms, with or without
     45        1.1      soda  * modification, are permitted provided that the following conditions
     46        1.1      soda  * are met:
     47        1.1      soda  * 1. Redistributions of source code must retain the above copyright
     48        1.1      soda  *    notice, this list of conditions and the following disclaimer.
     49        1.1      soda  * 2. Redistributions in binary form must reproduce the above copyright
     50        1.1      soda  *    notice, this list of conditions and the following disclaimer in the
     51        1.1      soda  *    documentation and/or other materials provided with the distribution.
     52        1.1      soda  * 3. All advertising materials mentioning features or use of this software
     53        1.1      soda  *    must display the following acknowledgement:
     54        1.1      soda  *	This product includes software developed by Charles M. Hannum.
     55        1.1      soda  * 4. The name of the author may not be used to endorse or promote products
     56        1.1      soda  *    derived from this software without specific prior written permission.
     57        1.1      soda  *
     58        1.1      soda  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     59        1.1      soda  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     60        1.1      soda  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     61        1.1      soda  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     62        1.1      soda  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     63        1.1      soda  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     64        1.1      soda  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     65        1.1      soda  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     66        1.1      soda  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     67        1.1      soda  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     68        1.1      soda  */
     69       1.16     lukem 
     70       1.16     lukem #include <sys/cdefs.h>
     71  1.29.40.1       mjf __KERNEL_RCSID(0, "$NetBSD: necpb.c,v 1.29.40.1 2008/04/03 12:42:11 mjf Exp $");
     72       1.25   tsutsui 
     73       1.25   tsutsui #include "opt_pci.h"
     74        1.1      soda 
     75        1.1      soda #include <sys/types.h>
     76        1.1      soda #include <sys/param.h>
     77        1.1      soda #include <sys/time.h>
     78        1.1      soda #include <sys/systm.h>
     79        1.1      soda #include <sys/errno.h>
     80        1.1      soda #include <sys/device.h>
     81        1.1      soda #include <sys/malloc.h>
     82        1.1      soda #include <sys/extent.h>
     83        1.3       mrg 
     84        1.3       mrg #include <uvm/uvm_extern.h>
     85        1.1      soda 
     86        1.1      soda #define _ARC_BUS_DMA_PRIVATE
     87        1.1      soda #include <machine/bus.h>
     88        1.1      soda 
     89        1.1      soda #include <machine/pio.h>
     90        1.1      soda 
     91        1.1      soda #include <machine/autoconf.h>
     92        1.1      soda #include <machine/cpu.h>
     93        1.8      soda #include <machine/platform.h>
     94        1.1      soda 
     95       1.26   tsutsui #include <mips/cache.h>
     96       1.26   tsutsui 
     97        1.1      soda #include <dev/pci/pcivar.h>
     98        1.1      soda #include <dev/pci/pcireg.h>
     99       1.27   tsutsui #include <dev/pci/pcidevs.h>
    100       1.25   tsutsui #ifdef PCI_NETBSD_CONFIGURE
    101       1.25   tsutsui #include <dev/pci/pciconf.h>
    102       1.25   tsutsui #endif
    103        1.1      soda 
    104        1.6        ur #include <arc/jazz/rd94.h>
    105        1.1      soda #include <arc/pci/necpbvar.h>
    106        1.1      soda 
    107       1.22   tsutsui #include "ioconf.h"
    108       1.22   tsutsui 
    109       1.19   tsutsui int	necpbmatch(struct device *, struct cfdata *, void *);
    110       1.19   tsutsui void	necpbattach(struct device *, struct device *, void *);
    111        1.1      soda 
    112       1.19   tsutsui void		necpb_attach_hook(struct device *, struct device *,
    113       1.19   tsutsui 		    struct pcibus_attach_args *);
    114       1.19   tsutsui int		necpb_bus_maxdevs(pci_chipset_tag_t, int);
    115       1.19   tsutsui pcitag_t	necpb_make_tag(pci_chipset_tag_t, int, int, int);
    116       1.19   tsutsui void		necpb_decompose_tag(pci_chipset_tag_t, pcitag_t, int *,
    117       1.19   tsutsui 		    int *, int *);
    118       1.19   tsutsui pcireg_t	necpb_conf_read(pci_chipset_tag_t, pcitag_t, int);
    119       1.19   tsutsui void		necpb_conf_write(pci_chipset_tag_t, pcitag_t, int, pcireg_t);
    120       1.19   tsutsui int		necpb_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
    121       1.19   tsutsui const char *	necpb_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
    122       1.19   tsutsui void *		necpb_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
    123       1.19   tsutsui 		    int, int (*func)(void *), void *);
    124       1.19   tsutsui void		necpb_intr_disestablish(pci_chipset_tag_t, void *);
    125       1.25   tsutsui #ifdef PCI_NETBSD_CONFIGURE
    126       1.25   tsutsui void		necpb_conf_interrupt(pci_chipset_tag_t, int, int, int, int,
    127       1.25   tsutsui 		    int *);
    128       1.25   tsutsui int		necpb_conf_hook(pci_chipset_tag_t, int, int, int, pcireg_t);
    129       1.25   tsutsui #endif
    130        1.1      soda 
    131       1.20   tsutsui uint32_t	necpb_intr(uint32_t, struct clockframe *);
    132        1.1      soda 
    133        1.1      soda 
    134       1.13   thorpej CFATTACH_DECL(necpb, sizeof(struct necpb_softc),
    135       1.13   thorpej     necpbmatch, necpbattach, NULL, NULL);
    136        1.1      soda 
    137        1.1      soda static struct necpb_intrhand	*necpb_inttbl[4];
    138        1.1      soda 
    139        1.2      soda /* There can be only one. */
    140        1.2      soda int necpbfound;
    141        1.8      soda struct necpb_context necpb_main_context;
    142        1.2      soda static long necpb_mem_ex_storage[EXTENT_FIXED_STORAGE_SIZE(10) / sizeof(long)];
    143        1.2      soda static long necpb_io_ex_storage[EXTENT_FIXED_STORAGE_SIZE(10) / sizeof(long)];
    144        1.2      soda 
    145        1.1      soda int
    146       1.19   tsutsui necpbmatch(struct device *parent, struct cfdata *match, void *aux)
    147        1.1      soda {
    148        1.1      soda 	struct confargs *ca = aux;
    149        1.1      soda 
    150        1.1      soda 	if (strcmp(ca->ca_name, necpb_cd.cd_name) != 0)
    151       1.19   tsutsui 		return 0;
    152        1.1      soda 
    153        1.2      soda 	if (necpbfound)
    154       1.19   tsutsui 		return 0;
    155        1.2      soda 
    156       1.19   tsutsui 	return 1;
    157        1.1      soda }
    158        1.1      soda 
    159        1.2      soda /*
    160        1.2      soda  * Set up the chipset's function pointers.
    161        1.2      soda  */
    162        1.2      soda void
    163       1.19   tsutsui necpb_init(struct necpb_context *ncp)
    164        1.2      soda {
    165       1.23   tsutsui 	pci_chipset_tag_t pc;
    166       1.25   tsutsui #ifndef PCI_NETBSD_CONFIGURE
    167        1.2      soda 	pcitag_t tag;
    168       1.27   tsutsui 	pcireg_t id, class, csr;
    169       1.27   tsutsui 	u_int dev;
    170       1.25   tsutsui #endif
    171        1.2      soda 
    172        1.2      soda 	if (ncp->nc_initialized)
    173        1.2      soda 		return;
    174        1.2      soda 
    175        1.2      soda 	arc_large_bus_space_init(&ncp->nc_memt, "necpcimem",
    176        1.2      soda 	    RD94_P_PCI_MEM, 0, RD94_S_PCI_MEM);
    177       1.29  christos 	arc_bus_space_init_extent(&ncp->nc_memt, (void *)necpb_mem_ex_storage,
    178        1.2      soda 	    sizeof(necpb_mem_ex_storage));
    179        1.2      soda 
    180        1.2      soda 	arc_bus_space_init(&ncp->nc_iot, "necpciio",
    181        1.2      soda 	    RD94_P_PCI_IO, RD94_V_PCI_IO, 0, RD94_S_PCI_IO);
    182       1.29  christos 	arc_bus_space_init_extent(&ncp->nc_iot, (void *)necpb_io_ex_storage,
    183        1.2      soda 	    sizeof(necpb_io_ex_storage));
    184        1.2      soda 
    185        1.2      soda 	jazz_bus_dma_tag_init(&ncp->nc_dmat);
    186        1.2      soda 
    187       1.23   tsutsui 	pc = &ncp->nc_pc;
    188       1.23   tsutsui 	pc->pc_attach_hook = necpb_attach_hook;
    189       1.23   tsutsui 	pc->pc_bus_maxdevs = necpb_bus_maxdevs;
    190       1.23   tsutsui 	pc->pc_make_tag = necpb_make_tag;
    191       1.23   tsutsui 	pc->pc_decompose_tag = necpb_decompose_tag;
    192       1.23   tsutsui 	pc->pc_conf_read = necpb_conf_read;
    193       1.23   tsutsui 	pc->pc_conf_write = necpb_conf_write;
    194       1.23   tsutsui 	pc->pc_intr_map = necpb_intr_map;
    195       1.23   tsutsui 	pc->pc_intr_string = necpb_intr_string;
    196       1.23   tsutsui 	pc->pc_intr_establish = necpb_intr_establish;
    197       1.23   tsutsui 	pc->pc_intr_disestablish = necpb_intr_disestablish;
    198       1.25   tsutsui #ifdef PCI_NETBSD_CONFIGURE
    199       1.25   tsutsui 	pc->pc_conf_interrupt = necpb_conf_interrupt;
    200       1.25   tsutsui 	pc->pc_conf_hook = necpb_conf_hook;
    201       1.25   tsutsui #endif
    202        1.2      soda 
    203       1.25   tsutsui #ifndef PCI_NETBSD_CONFIGURE
    204        1.9        ur 	/*
    205        1.9        ur 	 * XXX:
    206        1.9        ur 	 *  NEC's firmware does not configure PCI devices completely.
    207        1.9        ur 	 *  We need to disable expansion ROM and enable mem/io/busmaster
    208        1.9        ur 	 *  bits here.
    209        1.9        ur 	 */
    210       1.27   tsutsui 	for (dev = 3; dev <= 5; dev++) {
    211       1.27   tsutsui 		tag = necpb_make_tag(pc, 0, dev, 0);
    212       1.27   tsutsui 		id = necpb_conf_read(pc, tag, PCI_ID_REG);
    213       1.27   tsutsui 
    214       1.27   tsutsui 		if (PCI_VENDOR(id) == PCI_VENDOR_INVALID)
    215       1.27   tsutsui 			continue;
    216       1.27   tsutsui 
    217       1.27   tsutsui 		class = necpb_conf_read(pc, tag, PCI_CLASS_REG);
    218       1.27   tsutsui 		csr = necpb_conf_read(pc, tag, PCI_COMMAND_STATUS_REG);
    219       1.27   tsutsui 		if (PCI_CLASS(class) != PCI_CLASS_BRIDGE ||
    220       1.27   tsutsui 		    PCI_SUBCLASS(class) != PCI_SUBCLASS_BRIDGE_PCI) {
    221       1.27   tsutsui 			csr |= PCI_COMMAND_IO_ENABLE | PCI_COMMAND_MEM_ENABLE;
    222       1.27   tsutsui 			necpb_conf_write(pc, tag, PCI_MAPREG_ROM, 0);
    223       1.27   tsutsui 		}
    224       1.27   tsutsui 		csr |= PCI_COMMAND_MASTER_ENABLE;
    225       1.27   tsutsui 		necpb_conf_write(pc, tag, PCI_COMMAND_STATUS_REG, csr);
    226       1.27   tsutsui 	}
    227       1.25   tsutsui #endif
    228        1.2      soda 
    229        1.2      soda 	ncp->nc_initialized = 1;
    230        1.2      soda }
    231        1.2      soda 
    232        1.1      soda void
    233       1.19   tsutsui necpbattach(struct device *parent, struct device *self, void *aux)
    234        1.1      soda {
    235        1.1      soda 	struct necpb_softc *sc = (struct necpb_softc *)self;
    236        1.1      soda 	struct pcibus_attach_args pba;
    237       1.23   tsutsui 	pci_chipset_tag_t pc;
    238        1.1      soda 	int i;
    239        1.1      soda 
    240        1.2      soda 	necpbfound = 1;
    241        1.2      soda 
    242        1.1      soda 	printf("\n");
    243        1.1      soda 
    244        1.8      soda 	sc->sc_ncp = &necpb_main_context;
    245        1.2      soda 	necpb_init(sc->sc_ncp);
    246        1.1      soda 
    247       1.23   tsutsui 	pc = &sc->sc_ncp->nc_pc;
    248       1.25   tsutsui #ifdef PCI_NETBSD_CONFIGURE
    249       1.25   tsutsui 	pc->pc_ioext = extent_create("necpbio", 0x00100000, 0x01ffffff,
    250       1.25   tsutsui 	    M_DEVBUF, NULL, 0, EX_NOWAIT);
    251       1.25   tsutsui 	pc->pc_memext = extent_create("necpbmem", 0x08000000, 0x3fffffff,
    252       1.25   tsutsui 	    M_DEVBUF, NULL, 0, EX_NOWAIT);
    253       1.26   tsutsui 	pci_configure_bus(pc, pc->pc_ioext, pc->pc_memext, NULL, 0,
    254       1.26   tsutsui 	    mips_dcache_align);
    255       1.25   tsutsui #endif
    256       1.23   tsutsui 
    257        1.1      soda 	out32(RD94_SYS_PCI_INTMASK, 0xf);
    258        1.1      soda 
    259        1.1      soda 	for (i = 0; i < 4; i++)
    260        1.1      soda 		necpb_inttbl[i] = NULL;
    261        1.1      soda 
    262       1.28   tsutsui 	(*platform->set_intr)(MIPS_INT_MASK_2, necpb_intr, ARC_INTPRI_PCIISA);
    263        1.1      soda 
    264        1.2      soda 	pba.pba_iot = &sc->sc_ncp->nc_iot;
    265        1.2      soda 	pba.pba_memt = &sc->sc_ncp->nc_memt;
    266        1.2      soda 	pba.pba_dmat = &sc->sc_ncp->nc_dmat;
    267       1.15      fvdl 	pba.pba_dmat64 = NULL;
    268       1.23   tsutsui 	pba.pba_pc = pc;
    269        1.1      soda 	pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED;
    270        1.1      soda 	pba.pba_bus = 0;
    271       1.11   thorpej 	pba.pba_bridgetag = NULL;
    272        1.1      soda 
    273       1.18  drochner 	config_found_ia(self, "pcibus", &pba, pcibusprint);
    274        1.1      soda }
    275        1.1      soda 
    276        1.1      soda void
    277       1.19   tsutsui necpb_attach_hook(struct device *parent, struct device *self,
    278       1.19   tsutsui     struct pcibus_attach_args *pba)
    279        1.1      soda {
    280        1.1      soda }
    281        1.1      soda 
    282        1.1      soda int
    283       1.19   tsutsui necpb_bus_maxdevs(pci_chipset_tag_t pc, int busno)
    284        1.1      soda {
    285       1.19   tsutsui 
    286       1.19   tsutsui 	return 32;
    287        1.1      soda }
    288        1.1      soda 
    289        1.1      soda pcitag_t
    290       1.19   tsutsui necpb_make_tag(pci_chipset_tag_t pc, int bus, int device, int function)
    291        1.1      soda {
    292        1.1      soda 	pcitag_t tag;
    293        1.1      soda 
    294        1.1      soda 	if (bus >= 256 || device >= 32 || function >= 8)
    295        1.1      soda 		panic("necpb_make_tag: bad request");
    296        1.1      soda 
    297        1.1      soda 	tag = 0x80000000 | (bus << 16) | (device << 11) | (function << 8);
    298       1.19   tsutsui 	return tag;
    299        1.1      soda }
    300        1.1      soda 
    301        1.1      soda void
    302       1.19   tsutsui necpb_decompose_tag(pci_chipset_tag_t pc, pcitag_t tag, int *bp, int *dp,
    303       1.19   tsutsui    int *fp)
    304        1.1      soda {
    305       1.19   tsutsui 
    306        1.1      soda 	if (bp != NULL)
    307        1.1      soda 		*bp = (tag >> 16) & 0xff;
    308        1.1      soda 	if (dp != NULL)
    309        1.1      soda 		*dp = (tag >> 11) & 0x1f;
    310        1.1      soda 	if (fp != NULL)
    311        1.1      soda 		*fp = (tag >> 8) & 0x07;
    312        1.1      soda }
    313        1.1      soda 
    314        1.1      soda pcireg_t
    315       1.19   tsutsui necpb_conf_read(pci_chipset_tag_t pc, pcitag_t tag, int reg)
    316        1.1      soda {
    317        1.1      soda 	pcireg_t data;
    318        1.1      soda 	int s;
    319        1.1      soda 
    320        1.1      soda 	s = splhigh();
    321        1.1      soda 	out32(RD94_SYS_PCI_CONFADDR, tag | reg);
    322        1.1      soda 	data = in32(RD94_SYS_PCI_CONFDATA);
    323        1.1      soda 	out32(RD94_SYS_PCI_CONFADDR, 0);
    324        1.1      soda 	splx(s);
    325        1.1      soda 
    326       1.19   tsutsui 	return data;
    327        1.1      soda }
    328        1.1      soda 
    329        1.1      soda void
    330       1.19   tsutsui necpb_conf_write(pci_chipset_tag_t pc, pcitag_t tag, int reg, pcireg_t data)
    331        1.1      soda {
    332        1.1      soda 	int s;
    333        1.1      soda 
    334        1.1      soda 	s = splhigh();
    335        1.1      soda 	out32(RD94_SYS_PCI_CONFADDR, tag | reg);
    336        1.1      soda 	out32(RD94_SYS_PCI_CONFDATA, data);
    337        1.1      soda 	out32(RD94_SYS_PCI_CONFADDR, 0);
    338        1.1      soda 	splx(s);
    339        1.1      soda }
    340        1.1      soda 
    341        1.1      soda int
    342       1.19   tsutsui necpb_intr_map(struct pci_attach_args *pa, pci_intr_handle_t *ihp)
    343        1.1      soda {
    344        1.7        ur 	pci_chipset_tag_t pc = pa->pa_pc;
    345        1.7        ur 	pcitag_t intrtag = pa->pa_intrtag;
    346        1.7        ur 	int pin = pa->pa_intrpin;
    347       1.25   tsutsui 	int swiz = pa->pa_intrswiz % 4;
    348        1.1      soda 	int bus, dev;
    349        1.1      soda 
    350        1.1      soda 	if (pin == 0) {
    351        1.1      soda 		/* No IRQ used. */
    352        1.1      soda 		*ihp = -1;
    353       1.19   tsutsui 		return 1;
    354        1.1      soda 	}
    355        1.1      soda 
    356        1.1      soda 	if (pin > 4) {
    357        1.1      soda 		printf("necpb_intr_map: bad interrupt pin %d\n", pin);
    358        1.1      soda 		*ihp = -1;
    359       1.19   tsutsui 		return 1;
    360        1.1      soda 	}
    361        1.1      soda 
    362        1.1      soda 	necpb_decompose_tag(pc, intrtag, &bus, &dev, NULL);
    363        1.1      soda 	if (bus != 0) {
    364       1.25   tsutsui 		printf("necpb_intr_map: unknown bus %d\n", bus);
    365        1.1      soda 		*ihp = -1;
    366       1.19   tsutsui 		return 1;
    367        1.1      soda 	}
    368        1.1      soda 
    369        1.1      soda 	switch (dev) {
    370        1.1      soda 	case 3:
    371       1.25   tsutsui 		*ihp = (pin - swiz + 2) % 4;
    372        1.1      soda 		break;
    373        1.1      soda 	case 4:
    374       1.25   tsutsui 		*ihp = (pin - swiz + 1) % 4;
    375        1.1      soda 		break;
    376        1.1      soda 	case 5:
    377       1.25   tsutsui 		*ihp = (pin - swiz + 0) % 4;
    378        1.1      soda 		break;
    379        1.1      soda 	default:
    380        1.1      soda 		*ihp = -1;
    381       1.19   tsutsui 		return 1;
    382        1.1      soda 	}
    383        1.1      soda 
    384       1.19   tsutsui 	return 0;
    385        1.1      soda }
    386        1.1      soda 
    387        1.1      soda const char *
    388       1.19   tsutsui necpb_intr_string(pci_chipset_tag_t pc, pci_intr_handle_t ih)
    389        1.1      soda {
    390        1.1      soda 	static char str[8];
    391        1.1      soda 
    392        1.1      soda 	if (ih >= 4)
    393        1.5   thorpej 		panic("necpb_intr_string: bogus handle %ld", ih);
    394        1.1      soda 	sprintf(str, "int %c", 'A' + (int)ih);
    395       1.19   tsutsui 	return str;
    396        1.1      soda }
    397        1.1      soda 
    398        1.1      soda void *
    399       1.19   tsutsui necpb_intr_establish(pci_chipset_tag_t pc, pci_intr_handle_t ih, int level,
    400       1.19   tsutsui     int (*func)(void *), void *arg)
    401        1.1      soda {
    402        1.1      soda 	struct necpb_intrhand *n, *p;
    403       1.23   tsutsui 	uint32_t mask;
    404        1.1      soda 
    405        1.1      soda 	if (ih >= 4)
    406        1.1      soda 		panic("necpb_intr_establish: bogus handle");
    407        1.1      soda 
    408        1.1      soda 	n = malloc(sizeof(struct necpb_intrhand), M_DEVBUF, M_NOWAIT);
    409        1.1      soda 	if (n == NULL)
    410        1.1      soda 		panic("necpb_intr_establish: can't malloc interrupt handle");
    411        1.1      soda 
    412        1.1      soda 	n->ih_func = func;
    413        1.1      soda 	n->ih_arg = arg;
    414        1.1      soda 	n->ih_next = NULL;
    415        1.1      soda 	n->ih_intn = ih;
    416       1.17   tsutsui 	strlcpy(n->ih_evname, necpb_intr_string(pc, ih), sizeof(n->ih_evname));
    417       1.17   tsutsui 	evcnt_attach_dynamic(&n->ih_evcnt, EVCNT_TYPE_INTR, NULL, "necpb",
    418       1.17   tsutsui 	    n->ih_evname);
    419        1.1      soda 
    420        1.1      soda 	if (necpb_inttbl[ih] == NULL) {
    421        1.1      soda 		necpb_inttbl[ih] = n;
    422        1.1      soda 		mask = in32(RD94_SYS_PCI_INTMASK);
    423        1.1      soda 		mask |= 1 << ih;
    424        1.1      soda 		out32(RD94_SYS_PCI_INTMASK, mask);
    425        1.1      soda 	} else {
    426        1.1      soda 		p = necpb_inttbl[ih];
    427        1.1      soda 		while (p->ih_next != NULL)
    428        1.1      soda 			p = p->ih_next;
    429        1.1      soda 		p->ih_next = n;
    430        1.1      soda 	}
    431        1.1      soda 
    432        1.1      soda 	return n;
    433        1.1      soda }
    434        1.1      soda 
    435        1.1      soda void
    436       1.19   tsutsui necpb_intr_disestablish(pci_chipset_tag_t pc, void *cookie)
    437        1.1      soda {
    438        1.1      soda 	struct necpb_intrhand *n, *p, *q;
    439       1.23   tsutsui 	uint32_t mask;
    440        1.1      soda 
    441        1.1      soda 	n = cookie;
    442        1.1      soda 
    443        1.1      soda 	q = NULL;
    444        1.1      soda 	p = necpb_inttbl[n->ih_intn];
    445        1.1      soda 	while (p != n) {
    446        1.1      soda 		if (p == NULL)
    447        1.1      soda 			panic("necpb_intr_disestablish: broken intr table");
    448        1.1      soda 		q = p;
    449        1.1      soda 		p = p->ih_next;
    450        1.1      soda 	}
    451        1.1      soda 
    452        1.1      soda 	if (q == NULL) {
    453        1.1      soda 		necpb_inttbl[n->ih_intn] = n->ih_next;
    454        1.1      soda 		if (n->ih_next == NULL) {
    455        1.1      soda 			mask = in32(RD94_SYS_PCI_INTMASK);
    456        1.1      soda 			mask &= ~(1 << n->ih_intn);
    457        1.1      soda 			out32(RD94_SYS_PCI_INTMASK, mask);
    458        1.1      soda 		}
    459        1.1      soda 	} else
    460        1.1      soda 		q->ih_next = n->ih_next;
    461        1.1      soda 
    462       1.17   tsutsui 	evcnt_detach(&n->ih_evcnt);
    463       1.17   tsutsui 
    464        1.1      soda 	free(n, M_DEVBUF);
    465        1.1      soda }
    466        1.1      soda 
    467        1.1      soda /*
    468        1.1      soda  *   Handle PCI/EISA interrupt.
    469        1.1      soda  */
    470       1.20   tsutsui uint32_t
    471       1.20   tsutsui necpb_intr(uint32_t mask, struct clockframe *cf)
    472        1.1      soda {
    473       1.19   tsutsui 	uint32_t vector, stat;
    474        1.1      soda 	struct necpb_intrhand *p;
    475       1.24   tsutsui 	int i, handled;
    476        1.1      soda 
    477       1.24   tsutsui 	handled = 0;
    478        1.1      soda 	vector = in32(RD94_SYS_INTSTAT2) & 0xffff;
    479        1.1      soda 
    480        1.1      soda 	if (vector == 0x4000) {
    481        1.1      soda 		stat = in32(RD94_SYS_PCI_INTSTAT);
    482        1.1      soda 		stat &= in32(RD94_SYS_PCI_INTMASK);
    483       1.23   tsutsui 		for (i = 0; i < 4; i++) {
    484       1.23   tsutsui 			if (stat & (1 << i)) {
    485        1.1      soda #if 0
    486       1.23   tsutsui 				printf("pint %d\n", i);
    487        1.1      soda #endif
    488       1.23   tsutsui 				p = necpb_inttbl[i];
    489        1.1      soda 				while (p != NULL) {
    490       1.24   tsutsui 					if ((*p->ih_func)(p->ih_arg)) {
    491       1.24   tsutsui 						p->ih_evcnt.ev_count++;
    492       1.24   tsutsui 						handled |= 1;
    493       1.24   tsutsui 					}
    494        1.1      soda 					p = p->ih_next;
    495        1.1      soda 				}
    496        1.1      soda 			}
    497        1.1      soda 		}
    498        1.1      soda 	} else if (vector == 0x8000) {
    499        1.1      soda 		printf("eisa_nmi\n");
    500        1.1      soda 	} else {
    501        1.1      soda 		printf("eint %d\n", vector & 0xff);
    502        1.1      soda #if 0
    503       1.24   tsutsui 		if (eisa_intr(vector & 0xff)) {
    504       1.24   tsutsui 			handled |= 1;
    505       1.24   tsutsui 		}
    506        1.1      soda #endif
    507        1.1      soda 	}
    508        1.1      soda 
    509  1.29.40.1       mjf 	return handled ? MIPS_INT_MASK_2 : 0;
    510        1.1      soda }
    511       1.25   tsutsui 
    512       1.25   tsutsui #ifdef PCI_NETBSD_CONFIGURE
    513       1.25   tsutsui void
    514       1.25   tsutsui necpb_conf_interrupt(pci_chipset_tag_t pc, int bus, int dev, int func,
    515       1.25   tsutsui     int swiz, int *iline)
    516       1.25   tsutsui {
    517       1.25   tsutsui 
    518       1.25   tsutsui 	return;
    519       1.25   tsutsui }
    520       1.25   tsutsui 
    521       1.25   tsutsui int
    522       1.25   tsutsui necpb_conf_hook(pci_chipset_tag_t pc, int bus, int dev, int func,
    523       1.25   tsutsui     pcireg_t id)
    524       1.25   tsutsui {
    525       1.25   tsutsui 
    526       1.25   tsutsui 	/* ignore bogus IDs */
    527       1.25   tsutsui 	if (id == 0)
    528       1.25   tsutsui 		return 0;
    529       1.25   tsutsui 
    530       1.25   tsutsui 	/* don't configure bridges */
    531       1.25   tsutsui 	if (bus == 0 && (dev == 1 || dev == 2))
    532       1.25   tsutsui 		return 0;
    533       1.25   tsutsui 
    534       1.25   tsutsui 	return PCI_CONF_DEFAULT;
    535       1.25   tsutsui }
    536       1.25   tsutsui #endif
    537