syscons_pc98.c

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    1 /*-
    2  * Copyright (c) 1999 FreeBSD(98) Porting Team.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer as
   10  *    the first lines of this file unmodified.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  *
   26  * $FreeBSD: releng/5.0/sys/pc98/pc98/syscons_pc98.c 105712 2002-10-22 15:22:49Z nyan $
   27  */
   28 
   29 #include "opt_syscons.h"
   30 
   31 #include <sys/param.h>
   32 #include <sys/systm.h>
   33 #include <sys/kernel.h>
   34 #include <sys/module.h>
   35 #include <sys/bus.h>
   36 #include <sys/cons.h>
   37 #include <sys/consio.h>
   38 
   39 #include <machine/clock.h>
   40 
   41 #include <pc98/pc98/pc98.h>
   42 #include <pc98/pc98/pc98_machdep.h>
   43 
   44 #include <dev/syscons/syscons.h>
   45 
   46 #include <i386/isa/timerreg.h>
   47 
   48 #include <isa/isavar.h>
   49 
   50 static devclass_t       sc_devclass;
   51 
   52 static sc_softc_t main_softc;
   53 
   54 static void
   55 scidentify (driver_t *driver, device_t parent)
   56 {
   57         BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "sc", 0);
   58 }
   59 
   60 static int
   61 scprobe(device_t dev)
   62 {
   63         /* No pnp support */
   64         if (isa_get_vendorid(dev))
   65                 return (ENXIO);
   66 
   67         device_set_desc(dev, "System console");
   68         return sc_probe_unit(device_get_unit(dev), device_get_flags(dev));
   69 }
   70 
   71 static int
   72 scattach(device_t dev)
   73 {
   74         return sc_attach_unit(device_get_unit(dev), device_get_flags(dev));
   75 }
   76 
   77 #ifndef SC_NO_SUSPEND_VTYSWITCH
   78 static int      sc_cur_scr;
   79 #endif
   80 
   81 static int
   82 scsuspend(device_t dev)
   83 {
   84 #ifndef SC_NO_SUSPEND_VTYSWITCH
   85         int             retry = 10;
   86         static int      dummy;
   87         sc_softc_t      *sc;
   88 
   89         sc = &main_softc;
   90         sc_cur_scr = sc->cur_scp->index;
   91         do {
   92                 sc_switch_scr(sc, 0);
   93                 if (!sc->switch_in_progress) {
   94                         break;
   95                 }
   96                 tsleep(&dummy, 0, "scsuspend", 100);
   97         } while (retry--);
   98 
   99 #endif
  100         return (0);
  101 }
  102 
  103 static int
  104 scresume(device_t dev)
  105 {
  106 #ifndef SC_NO_SUSPEND_VTYSWITCH
  107         sc_softc_t      *sc;
  108 
  109         sc = &main_softc;
  110         sc_switch_scr(sc, sc_cur_scr);
  111 
  112 #endif
  113         return (0);
  114 }
  115 
  116 int
  117 sc_max_unit(void)
  118 {
  119         return devclass_get_maxunit(sc_devclass);
  120 }
  121 
  122 sc_softc_t
  123 *sc_get_softc(int unit, int flags)
  124 {
  125         sc_softc_t *sc;
  126 
  127         if (unit < 0)
  128                 return NULL;
  129         if (flags & SC_KERNEL_CONSOLE) {
  130                 /* FIXME: clear if it is wired to another unit! */
  131                 sc = &main_softc;
  132         } else {
  133                 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, unit));
  134                 if (sc == NULL)
  135                         return NULL;
  136         }
  137         sc->unit = unit;
  138         if (!(sc->flags & SC_INIT_DONE)) {
  139                 sc->keyboard = -1;
  140                 sc->adapter = -1;
  141                 sc->mouse_char = SC_MOUSE_CHAR;
  142         }
  143         return sc;
  144 }
  145 
  146 sc_softc_t
  147 *sc_find_softc(struct video_adapter *adp, struct keyboard *kbd)
  148 {
  149         sc_softc_t *sc;
  150         int units;
  151         int i;
  152 
  153         sc = &main_softc;
  154         if (((adp == NULL) || (adp == sc->adp))
  155             && ((kbd == NULL) || (kbd == sc->kbd)))
  156                 return sc;
  157         units = devclass_get_maxunit(sc_devclass);
  158         for (i = 0; i < units; ++i) {
  159                 sc = (sc_softc_t *)device_get_softc(devclass_get_device(sc_devclass, i));
  160                 if (sc == NULL)
  161                         continue;
  162                 if (((adp == NULL) || (adp == sc->adp))
  163                     && ((kbd == NULL) || (kbd == sc->kbd)))
  164                         return sc;
  165         }
  166         return NULL;
  167 }
  168 
  169 int
  170 sc_get_cons_priority(int *unit, int *flags)
  171 {
  172         int disabled;
  173         const char *at;
  174         int u, f;
  175 
  176         *unit = -1;
  177         for (u = 0; u < 16; u++) {
  178                 if ((resource_int_value(SC_DRIVER_NAME, u, "disabled",
  179                                         &disabled) == 0) && disabled)
  180                         continue;
  181                 if (resource_string_value(SC_DRIVER_NAME, u, "at", &at) != 0)
  182                         continue;
  183                 if (resource_int_value(SC_DRIVER_NAME, u, "flags", &f) != 0)
  184                         f = 0;
  185                 if (f & SC_KERNEL_CONSOLE) {
  186                         /* the user designates this unit to be the console */
  187                         *unit = u;
  188                         *flags = f;
  189                         break;
  190                 }
  191                 if (*unit < 0) {
  192                         /* ...otherwise remember the first found unit */
  193                         *unit = u;
  194                         *flags = f;
  195                 }
  196         }
  197         if (*unit < 0)
  198                 return CN_DEAD;
  199         return CN_INTERNAL;
  200 }
  201 
  202 void
  203 sc_get_bios_values(bios_values_t *values)
  204 {
  205         values->cursor_start = 15;
  206         values->cursor_end = 16;
  207         values->shift_state = 0;
  208         if (pc98_machine_type & M_8M)
  209                 values->bell_pitch = BELL_PITCH_8M;
  210         else
  211                 values->bell_pitch = BELL_PITCH_5M;
  212 }
  213 
  214 int
  215 sc_tone(int herz)
  216 {
  217         int pitch;
  218 
  219         if (herz) {
  220                 /* enable counter 1 */
  221                 outb(0x35, inb(0x35) & 0xf7);
  222                 /* set command for counter 1, 2 byte write */
  223                 if (acquire_timer1(TIMER_16BIT | TIMER_SQWAVE))
  224                         return EBUSY;
  225                 /* set pitch */
  226                 pitch = timer_freq/herz;
  227                 outb(TIMER_CNTR1, pitch);
  228                 outb(TIMER_CNTR1, pitch >> 8);
  229         } else {
  230                 /* disable counter 1 */
  231                 outb(0x35, inb(0x35) | 0x08);
  232                 release_timer1();
  233         }
  234         return 0;
  235 }
  236 
  237 static device_method_t sc_methods[] = {
  238         DEVMETHOD(device_identify,      scidentify),
  239         DEVMETHOD(device_probe,         scprobe),
  240         DEVMETHOD(device_attach,        scattach),
  241         DEVMETHOD(device_suspend,       scsuspend),
  242         DEVMETHOD(device_resume,        scresume),
  243         { 0, 0 }
  244 };
  245 
  246 static driver_t sc_driver = {
  247         SC_DRIVER_NAME,
  248         sc_methods,
  249         sizeof(sc_softc_t),
  250 };
  251 
  252 DRIVER_MODULE(sc, isa, sc_driver, sc_devclass, 0, 0);

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FreeBSD/Linux Kernel Cross Reference sys/pc98/pc98/syscons_pc98.c

FreeBSD/Linux Kernel Cross Reference
sys/pc98/pc98/syscons_pc98.c