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      1 /*	$NetBSD: plumisa_machdep.c,v 1.14 2021/08/07 16:18:54 thorpej Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by UCHIYAMA Yasushi.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: plumisa_machdep.c,v 1.14 2021/08/07 16:18:54 thorpej Exp $");
     34 
     35 #include <sys/param.h>
     36 #include <sys/systm.h>
     37 
     38 #include <machine/bus.h>
     39 
     40 #include <dev/isa/isavar.h>
     41 #include <dev/isa/isareg.h>
     42 
     43 #include <machine/platid.h>
     44 #include <machine/platid_mask.h>
     45 
     46 #include <hpcmips/tx/tx39var.h>
     47 #include <hpcmips/dev/plumvar.h>
     48 #include <hpcmips/dev/plumicuvar.h>
     49 #include <hpcmips/dev/plumiobusvar.h>
     50 
     51 #include "locators.h"
     52 
     53 int	plumisabprint(void *, const char *);
     54 int	plumisabmatch(device_t, cfdata_t, void *);
     55 void	plumisabattach(device_t, device_t, void *);
     56 
     57 struct plumisab_softc {
     58 	plum_chipset_tag_t sc_pc;
     59 	bus_space_tag_t sc_iot;
     60 	int sc_irq;
     61 	void *sc_ih;
     62 };
     63 
     64 CFATTACH_DECL_NEW(plumisab, sizeof(struct plumisab_softc),
     65     plumisabmatch, plumisabattach, NULL, NULL);
     66 
     67 int
     68 plumisabmatch(device_t parent, cfdata_t match, void *aux)
     69 {
     70 	struct plumiobus_attach_args *pba = aux;
     71 	platid_mask_t mask;
     72 
     73 	if (strcmp(pba->pba_busname, match->cf_name)) {
     74 		return (0);
     75 	}
     76 
     77 	if (match->cf_loc[PLUMIOBUSIFCF_PLATFORM] ==
     78 	    PLUMIOBUSIFCF_PLATFORM_DEFAULT) {
     79 		return (1);
     80 	}
     81 
     82 	mask = PLATID_DEREF(match->cf_loc[PLUMIOBUSIFCF_PLATFORM]);
     83 	if (platid_match(&platid, &mask)) {
     84 		return (2);
     85 	}
     86 
     87 	return (0);
     88 }
     89 
     90 void
     91 plumisabattach(device_t parent, device_t self, void *aux)
     92 {
     93 	struct plumiobus_attach_args *pba = aux;
     94 	struct plumisab_softc *sc = device_private(self);
     95 	struct isabus_attach_args iba;
     96 
     97 	printf("\n");
     98 	sc->sc_pc = pba->pba_pc;
     99 	sc->sc_iot = pba->pba_iot;
    100 	sc->sc_irq = pba->pba_irq;
    101 	printf(" base=%#x irq=%d\n", sc->sc_iot->t_base, sc->sc_irq);
    102 #if 0
    103 	/* Reset I/O bus */
    104 	plum_power_ioreset(sc->sc_pc);
    105 #endif
    106 	/* Dump I/O port */
    107 	if (0) {
    108 		bus_space_handle_t ioh;
    109 		int i;
    110 		bus_space_map(sc->sc_iot, 0, 0x400, 0, &ioh);
    111 		for(i = 0; i < 0x400; i += 4) {
    112 			printf("[%03x]%02x", i, bus_space_read_1(sc->sc_iot, ioh, i + 3));
    113 			printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 2));
    114 			printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 1));
    115 			printf("%02x", bus_space_read_1(sc->sc_iot, ioh, i + 0));
    116 		}
    117 		bus_space_unmap(sc->sc_iot, ioh, 0x400);
    118 	}
    119 
    120 	iba.iba_ic	= sc;
    121 	/* Plum ISA-bus don't have memory space! */
    122 	/* Plum ISA port space */
    123 	iba.iba_iot     = sc->sc_iot;
    124 	config_found(self, &iba, plumisabprint, CFARGS_NONE);
    125 }
    126 
    127 int
    128 plumisabprint(void *aux, const char *pnp)
    129 {
    130 
    131 	return (pnp ? QUIET : UNCONF);
    132 }
    133 
    134 void
    135 isa_attach_hook(device_t parent, device_t self,
    136     struct isabus_attach_args *iba)
    137 {
    138 
    139 }
    140 
    141 void
    142 isa_detach_hook(isa_chipset_tag_t, device_t self)
    143 {
    144 }
    145 
    146 void *
    147 isa_intr_establish(isa_chipset_tag_t ic, int irq, int type, int level,
    148     int (*ih_fun)(void *), void *ih_arg)
    149 {
    150 	struct plumisab_softc *sc = (void*)ic;
    151 
    152 	sc->sc_ih = plum_intr_establish(sc->sc_pc, sc->sc_irq, type, level,
    153 					ih_fun, ih_arg);
    154 	return (sc->sc_ih);
    155 }
    156 
    157 void
    158 isa_intr_disestablish(isa_chipset_tag_t ic, void *arg)
    159 {
    160 	struct plumisab_softc *sc = (void*)ic;
    161 
    162 	plum_intr_disestablish(sc->sc_pc, arg);
    163 }
    164 
    165 int
    166 isa_intr_alloc(isa_chipset_tag_t ic, int mask, int type, int *irq)
    167 {
    168 	struct plumisab_softc *sc = (void*)ic;
    169 
    170 	*irq = sc->sc_irq;
    171 
    172 	return (0);
    173 }
    174