pckbc_isa.c

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 /* $NetBSD: pckbc_isa.c,v 1.13 2004/03/24 17:26:53 drochner Exp $ */
    2 
    3 /*
    4  * Copyright (c) 1998
    5  *      Matthias Drochner.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __KERNEL_RCSID(0, "$NetBSD: pckbc_isa.c,v 1.13 2004/03/24 17:26:53 drochner Exp $");
   30 
   31 #include <sys/param.h>
   32 #include <sys/systm.h>
   33 #include <sys/kernel.h>
   34 #include <sys/proc.h>
   35 #include <sys/device.h>
   36 #include <sys/malloc.h> 
   37 #include <sys/errno.h>
   38 #include <sys/queue.h>
   39 #include <sys/lock.h>
   40 
   41 #include <machine/bus.h>
   42 
   43 #include <dev/isa/isareg.h>  
   44 #include <dev/isa/isavar.h>
   45 
   46 #include <dev/ic/i8042reg.h>
   47 #include <dev/ic/pckbcvar.h>
   48 
   49 int     pckbc_isa_match __P((struct device *, struct cfdata *, void *));
   50 void    pckbc_isa_attach __P((struct device *, struct device *, void *));
   51 
   52 struct pckbc_isa_softc {
   53         struct pckbc_softc sc_pckbc;
   54 
   55         isa_chipset_tag_t sc_ic;
   56         int sc_irq[PCKBC_NSLOTS];
   57 };
   58 
   59 CFATTACH_DECL(pckbc_isa, sizeof(struct pckbc_isa_softc),
   60     pckbc_isa_match, pckbc_isa_attach, NULL, NULL);
   61 
   62 void    pckbc_isa_intr_establish __P((struct pckbc_softc *, pckbc_slot_t));
   63 
   64 int
   65 pckbc_isa_match(parent, match, aux)
   66         struct device *parent;
   67         struct cfdata *match;
   68         void *aux;
   69 {
   70         struct isa_attach_args *ia = aux;
   71         bus_space_tag_t iot = ia->ia_iot;
   72         bus_space_handle_t ioh_d, ioh_c;
   73         int res, ok = 1;
   74 
   75         if (ISA_DIRECT_CONFIG(ia))
   76                 return (0);
   77 
   78         /* If values are hardwired to something that they can't be, punt. */
   79         if (ia->ia_nio < 1 ||
   80             (ia->ia_io[0].ir_addr != ISACF_PORT_DEFAULT &&
   81              ia->ia_io[0].ir_addr != IO_KBD))
   82                 return (0);
   83 
   84         if (ia->ia_niomem > 0 &&
   85             (ia->ia_iomem[0].ir_addr != ISACF_IOMEM_DEFAULT))
   86                 return (0);
   87 
   88         if (ia->ia_nirq < 1 ||
   89             (ia->ia_irq[0].ir_irq != ISACF_IRQ_DEFAULT &&
   90              ia->ia_irq[0].ir_irq != 1 /*XXX*/))
   91                 return (0);
   92 
   93         if (ia->ia_ndrq > 0 &&
   94             (ia->ia_drq[0].ir_drq != ISACF_DRQ_DEFAULT))
   95                 return (0);
   96 
   97         if (pckbc_is_console(iot, IO_KBD) == 0) {
   98                 struct pckbc_internal t;
   99 
  100                 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d))
  101                         return (0);
  102                 if (bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c)) {
  103                         bus_space_unmap(iot, ioh_d, 1);
  104                         return (0);
  105                 }
  106 
  107                 memset(&t, 0, sizeof(t));
  108                 t.t_iot = iot;
  109                 t.t_ioh_d = ioh_d;
  110                 t.t_ioh_c = ioh_c;
  111 
  112                 /* flush KBC */
  113                 (void) pckbc_poll_data1(&t, PCKBC_KBD_SLOT);
  114 
  115                 /* KBC selftest */
  116                 if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0) {
  117                         ok = 0;
  118                         goto out;
  119                 }
  120                 res = pckbc_poll_data1(&t, PCKBC_KBD_SLOT);
  121                 if (res != 0x55) {
  122 #ifdef DEBUG
  123                         printf("kbc selftest: %x\n", res);
  124 #endif
  125                         ok = 0;
  126                 }
  127  out:
  128                 bus_space_unmap(iot, ioh_d, 1);
  129                 bus_space_unmap(iot, ioh_c, 1);
  130         }
  131 
  132         if (ok) {
  133                 ia->ia_io[0].ir_addr = IO_KBD;
  134                 ia->ia_io[0].ir_size = 5;
  135                 ia->ia_nio = 1;
  136 
  137                 ia->ia_niomem = 0;
  138                 ia->ia_nirq = 0;
  139                 ia->ia_ndrq = 0;
  140         }
  141         return (ok);
  142 }
  143 
  144 void
  145 pckbc_isa_attach(parent, self, aux)
  146         struct device *parent, *self;
  147         void *aux;
  148 {
  149         struct pckbc_isa_softc *isc = (void *)self;
  150         struct pckbc_softc *sc = &isc->sc_pckbc;
  151         struct isa_attach_args *ia = aux;
  152         struct pckbc_internal *t;
  153         bus_space_tag_t iot;
  154         bus_space_handle_t ioh_d, ioh_c;
  155 
  156         isc->sc_ic = ia->ia_ic;
  157         iot = ia->ia_iot;
  158 
  159         switch (ia->ia_nirq) {
  160         case 1:
  161                 /* Both channels use the same IRQ. */
  162                 isc->sc_irq[PCKBC_KBD_SLOT] =
  163                     isc->sc_irq[PCKBC_AUX_SLOT] = ia->ia_irq[0].ir_irq;
  164                 break;
  165 
  166         case 2:
  167                 /* First IRQ is kbd, second IRQ is aux port. */
  168                 isc->sc_irq[PCKBC_KBD_SLOT] = ia->ia_irq[0].ir_irq;
  169                 isc->sc_irq[PCKBC_AUX_SLOT] = ia->ia_irq[1].ir_irq;
  170                 break;
  171 
  172         default:
  173                 /* Set up IRQs for "normal" ISA. */
  174                 isc->sc_irq[PCKBC_KBD_SLOT] = 1;
  175                 isc->sc_irq[PCKBC_AUX_SLOT] = 12;
  176                 break;
  177         }
  178 
  179         sc->intr_establish = pckbc_isa_intr_establish;
  180 
  181         if (pckbc_is_console(iot, IO_KBD)) {
  182                 t = &pckbc_consdata;
  183                 ioh_d = t->t_ioh_d;
  184                 ioh_c = t->t_ioh_c;
  185                 pckbc_console_attached = 1;
  186                 /* t->t_cmdbyte was initialized by cnattach */
  187         } else {
  188                 if (bus_space_map(iot, IO_KBD + KBDATAP, 1, 0, &ioh_d) ||
  189                     bus_space_map(iot, IO_KBD + KBCMDP, 1, 0, &ioh_c))
  190                         panic("pckbc_attach: couldn't map");
  191 
  192                 t = malloc(sizeof(struct pckbc_internal), M_DEVBUF,
  193                     M_WAITOK|M_ZERO);
  194                 t->t_iot = iot;
  195                 t->t_ioh_d = ioh_d;
  196                 t->t_ioh_c = ioh_c;
  197                 t->t_addr = IO_KBD;
  198                 t->t_cmdbyte = KC8_CPU; /* Enable ports */
  199                 callout_init(&t->t_cleanup);
  200         }
  201 
  202         t->t_sc = sc;
  203         sc->id = t;
  204 
  205         printf("\n");
  206 
  207         /* Finish off the attach. */
  208         pckbc_attach(sc);
  209 }
  210 
  211 void
  212 pckbc_isa_intr_establish(sc, slot)
  213         struct pckbc_softc *sc;
  214         pckbc_slot_t slot;
  215 {
  216         struct pckbc_isa_softc *isc = (void *) sc;
  217         void *rv;
  218 
  219         rv = isa_intr_establish(isc->sc_ic, isc->sc_irq[slot], IST_EDGE,
  220             IPL_TTY, pckbcintr, sc);
  221         if (rv == NULL) {
  222                 printf("%s: unable to establish interrupt for %s slot\n",
  223                     sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
  224         } else {
  225                 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname,
  226                     isc->sc_irq[slot], pckbc_slot_names[slot]);
  227         }
  228 }

Cache object: 7d0199f6cbf00703e5a7855afca651c3

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/dev/isa/pckbc_isa.c

FreeBSD/Linux Kernel Cross Reference
sys/dev/isa/pckbc_isa.c