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      1 /* $NetBSD: opms_isa.c,v 1.13 2023/08/30 09:17:46 andvar Exp $ */
      2 
      3 /*
      4  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
      5  * All rights reserved.
      6  *
      7  * Author: Chris G. Demetriou
      8  *
      9  * Permission to use, copy, modify and distribute this software and
     10  * its documentation is hereby granted, provided that both the copyright
     11  * notice and this permission notice appear in all copies of the
     12  * software, derivative works or modified versions, and any portions
     13  * thereof, and that both notices appear in supporting documentation.
     14  *
     15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  *
     19  * Carnegie Mellon requests users of this software to return to
     20  *
     21  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  *  School of Computer Science
     23  *  Carnegie Mellon University
     24  *  Pittsburgh PA 15213-3890
     25  *
     26  * any improvements or extensions that they make and grant Carnegie the
     27  * rights to redistribute these changes.
     28  */
     29 
     30 #include <sys/cdefs.h>
     31 __KERNEL_RCSID(0, "$NetBSD: opms_isa.c,v 1.13 2023/08/30 09:17:46 andvar Exp $");
     32 
     33 #include <sys/param.h>
     34 #include <sys/systm.h>
     35 #include <sys/tty.h>
     36 #include <sys/device.h>
     37 
     38 #include <sys/bus.h>
     39 
     40 #include <dev/isa/isareg.h>
     41 #include <dev/isa/isavar.h>
     42 
     43 #include <arc/dev/pcconsvar.h>
     44 #include <arc/dev/opmsvar.h>
     45 #include <arc/isa/pccons_isavar.h>
     46 
     47 static int	opms_isa_match(device_t, cfdata_t, void *);
     48 static void	opms_isa_attach(device_t, device_t, void *);
     49 
     50 CFATTACH_DECL_NEW(opms_isa, sizeof(struct opms_softc),
     51     opms_isa_match, opms_isa_attach, NULL, NULL);
     52 
     53 static int
     54 opms_isa_match(device_t parent, cfdata_t cf, void *aux)
     55 {
     56 	struct isa_attach_args *ia = aux;
     57 	bus_addr_t iobase = IO_KBD;
     58 	bus_size_t iosize = IO_KBDSIZE;
     59 	int irq = 12;
     60 
     61 	if (ia->ia_nio < 1)
     62 		return 0;
     63 	if (ia->ia_io[0].ir_addr != ISA_UNKNOWN_PORT)
     64 		iobase = ia->ia_io[0].ir_addr;
     65 #if 0	/* XXX isa.c */
     66 	if (ia->ia_iosize != 0)
     67 		iosize = ia->ia_iosize;
     68 #endif
     69 	if (ia->ia_irq[0].ir_irq != ISA_UNKNOWN_IRQ)
     70 		irq = ia->ia_irq[0].ir_irq;
     71 
     72 #if 0
     73 	/* If values are hardwired to something that they can't be, punt. */
     74 	if (iobase != IO_KBD || iosize != IO_KBDSIZE ||
     75 	    ia->ia_maddr != MADDRUNK || ia->ia_msize != 0 ||
     76 	    ia->ia_irq != 1 || ia->ia_drq != DRQUNK)
     77 		return 0;
     78 #endif
     79 
     80 	if (pccons_isa_conf == NULL)
     81 		return 0;
     82 
     83 	if (!opms_common_match(ia->ia_iot, pccons_isa_conf))
     84 		return 0;
     85 
     86 	ia->ia_nio = 1;
     87 	ia->ia_io[0].ir_addr = iobase;
     88 	ia->ia_io[0].ir_size = iosize;
     89 
     90 	ia->ia_nirq = 1;
     91 	ia->ia_irq[0].ir_irq = irq;
     92 
     93 	ia->ia_niomem = 0;
     94 	ia->ia_ndrq = 0;
     95 
     96 	return 1;
     97 }
     98 
     99 static void
    100 opms_isa_attach(device_t parent, device_t self, void *aux)
    101 {
    102 	struct opms_softc *sc = device_private(self);
    103 	struct isa_attach_args *ia = aux;
    104 
    105 	sc->sc_dev = self;
    106 
    107 	aprint_normal("\n");
    108 
    109 	isa_intr_establish(ia->ia_ic, ia->ia_irq[0].ir_irq, IST_EDGE, IPL_TTY,
    110 	    pcintr, sc);
    111 	opms_common_attach(sc, ia->ia_iot, pccons_isa_conf);
    112 }
    113