Annotation of sys/dev/isa/vga_isa.c, Revision 1.1
1.1 ! nbrk 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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