dev/isa/vga

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This source file includes following definitions.
vga_isa_match
vga_isa_attach
vga_isa_cnattach
    1 /* $OpenBSD: vga_isa.c,v 1.8 2002/03/14 01:26:56 millert Exp $ */
    2 /* $NetBSD: vga_isa.c,v 1.3 1998/06/12 18:45:48 drochner Exp $ */
    3 
    4 /*
    5  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
    6  * All rights reserved.
    7  *
    8  * Author: Chris G. Demetriou
    9  * 
   10  * Permission to use, copy, modify and distribute this software and
   11  * its documentation is hereby granted, provided that both the copyright
   12  * notice and this permission notice appear in all copies of the
   13  * software, derivative works or modified versions, and any portions
   14  * thereof, and that both notices appear in supporting documentation.
   15  * 
   16  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 
   17  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 
   18  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
   19  * 
   20  * Carnegie Mellon requests users of this software to return to
   21  *
   22  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
   23  *  School of Computer Science
   24  *  Carnegie Mellon University
   25  *  Pittsburgh PA 15213-3890
   26  *
   27  * any improvements or extensions that they make and grant Carnegie the
   28  * rights to redistribute these changes.
   29  */
   30 
   31 #include <sys/param.h>
   32 #include <sys/systm.h>
   33 #include <sys/kernel.h>
   34 #include <sys/device.h>
   35 #include <sys/malloc.h>
   36 
   37 #include <dev/isa/isavar.h>
   38 
   39 #include <dev/ic/mc6845reg.h>
   40 #include <dev/ic/pcdisplayvar.h>
   41 #include <dev/ic/vgareg.h>
   42 #include <dev/ic/vgavar.h>
   43 #include <dev/isa/vga_isavar.h>
   44 
   45 #include <dev/wscons/wsconsio.h>
   46 #include <dev/wscons/wsdisplayvar.h>
   47 
   48 struct vga_isa_softc {
   49         struct device sc_dev; 
   50 #if 0
   51         struct vga_config *sc_vc;       /* VGA configuration */
   52 #endif
   53 };
   54 
   55 int     vga_isa_match(struct device *, void *, void *);
   56 void    vga_isa_attach(struct device *, struct device *, void *);
   57 
   58 struct cfattach vga_isa_ca = {
   59         sizeof(struct vga_isa_softc), vga_isa_match, vga_isa_attach,
   60 };
   61 
   62 int
   63 vga_isa_match(parent, match, aux)
   64         struct device *parent;
   65         void *match;
   66         void *aux;
   67 {
   68         struct isa_attach_args *ia = aux;
   69 
   70         /* If values are hardwired to something that they can't be, punt. */
   71         if ((ia->ia_iobase != IOBASEUNK && ia->ia_iobase != 0x3b0) ||
   72             /* ia->ia_iosize != 0 || XXX isa.c */
   73             (ia->ia_maddr != MADDRUNK && ia->ia_maddr != 0xa0000) ||
   74             (ia->ia_msize != 0 && ia->ia_msize != 0x20000) ||
   75             ia->ia_irq != IRQUNK || ia->ia_drq != DRQUNK)
   76                 return (0);
   77 
   78         if (!vga_is_console(ia->ia_iot, WSDISPLAY_TYPE_ISAVGA) &&
   79             !vga_common_probe(ia->ia_iot, ia->ia_memt))
   80                 return (0);
   81 
   82         ia->ia_iobase = 0x3b0;  /* XXX mono 0x3b0 color 0x3c0 */
   83         ia->ia_iosize = 0x30;   /* XXX 0x20 */
   84         ia->ia_maddr = 0xa0000;
   85         ia->ia_msize = 0x20000;
   86         return (2);     /* more than generic pcdisplay */
   87 }
   88 
   89 void
   90 vga_isa_attach(parent, self, aux)
   91         struct device *parent, *self;
   92         void *aux;
   93 {
   94         struct isa_attach_args *ia = aux;
   95 #if 0
   96         struct vga_isa_softc *sc = (struct vga_isa_softc *)self;
   97 #endif
   98 
   99         printf("\n");
  100 
  101         vga_common_attach(self, ia->ia_iot, ia->ia_memt,
  102                           WSDISPLAY_TYPE_ISAVGA);
  103 }
  104 
  105 int
  106 vga_isa_cnattach(iot, memt)
  107         bus_space_tag_t iot, memt;
  108 {
  109         return (vga_cnattach(iot, memt, WSDISPLAY_TYPE_ISAVGA, 1));
  110 }
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root/dev/isa/vga_isa.c

DEFINITIONS
