176 lines
4.9 KiB
C
176 lines
4.9 KiB
C
/* $NetBSD: vga_jazzio.c,v 1.14 2005/12/11 12:16:39 christos Exp $ */
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/* NetBSD: vga_isa.c,v 1.3 1998/06/12 18:45:48 drochner Exp */
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/*
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* Copyright (c) 1995, 1996 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: vga_jazzio.c,v 1.14 2005/12/11 12:16:39 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <uvm/uvm_extern.h>
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#include <machine/autoconf.h>
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#include <machine/bus.h>
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#include <machine/wired_map.h>
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#include <mips/pte.h>
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#include <dev/ic/mc6845reg.h>
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#include <dev/ic/pcdisplayvar.h>
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#include <dev/ic/vgareg.h>
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#include <dev/ic/vgavar.h>
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#include <arc/jazz/jazziovar.h>
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#include <arc/jazz/pica.h>
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#include <arc/jazz/vga_jazziovar.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wscons/wsdisplayvar.h>
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#define WSDISPLAY_TYPE_JAZZVGA WSDISPLAY_TYPE_PCIVGA /* XXX not really */
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int vga_jazzio_init_tag(const char *, bus_space_tag_t *, bus_space_tag_t *);
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paddr_t vga_jazzio_mmap(void *, off_t, int);
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int vga_jazzio_match(struct device *, struct cfdata *, void *);
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void vga_jazzio_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(vga_jazzio, sizeof(struct vga_softc),
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vga_jazzio_match, vga_jazzio_attach, NULL, NULL);
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const struct vga_funcs vga_jazzio_funcs = {
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NULL,
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vga_jazzio_mmap,
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};
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int
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vga_jazzio_init_tag(const char *name, bus_space_tag_t *iotp,
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bus_space_tag_t *memtp)
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{
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static int initialized = 0;
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static struct arc_bus_space vga_io, vga_mem;
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if (strcmp(name, "ALI_S3") != 0)
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return ENXIO;
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if (!initialized) {
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initialized = 1;
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arc_bus_space_init(&vga_io, "vga_jazzio_io",
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PICA_P_LOCAL_VIDEO_CTRL, PICA_V_LOCAL_VIDEO_CTRL,
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0, PICA_S_LOCAL_VIDEO_CTRL);
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arc_bus_space_init(&vga_mem, "vga_jazzio_mem",
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PICA_P_LOCAL_VIDEO, PICA_V_LOCAL_VIDEO,
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0, PICA_S_LOCAL_VIDEO);
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arc_wired_enter_page(PICA_V_LOCAL_VIDEO_CTRL,
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PICA_P_LOCAL_VIDEO_CTRL,
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PICA_S_LOCAL_VIDEO_CTRL / 2);
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arc_wired_enter_page(
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PICA_V_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2,
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PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2,
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PICA_S_LOCAL_VIDEO_CTRL / 2);
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arc_wired_enter_page(PICA_V_LOCAL_VIDEO,
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PICA_P_LOCAL_VIDEO,
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PICA_S_LOCAL_VIDEO / 2);
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arc_wired_enter_page(
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PICA_V_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
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PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
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PICA_S_LOCAL_VIDEO / 2);
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#if 0
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arc_wired_enter_page(PICA_V_EXTND_VIDEO_CTRL,
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PICA_P_EXTND_VIDEO_CTRL,
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PICA_S_EXTND_VIDEO_CTRL / 2);
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arc_wired_enter_page(
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PICA_V_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
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PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
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PICA_S_EXTND_VIDEO_CTRL / 2);
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#endif
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}
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*iotp = &vga_io;
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*memtp = &vga_mem;
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return 0;
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}
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paddr_t
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vga_jazzio_mmap(void *v, off_t offset, int prot)
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{
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if (offset >= 0xa0000 && offset < 0xc0000)
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return mips_btop(PICA_P_LOCAL_VIDEO + offset);
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if (offset >= 0x0000 && offset < 0x10000)
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return mips_btop(PICA_P_LOCAL_VIDEO_CTRL + offset);
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if (offset >= 0x40000000 && offset < 0x40800000)
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return mips_btop(PICA_P_LOCAL_VIDEO + offset - 0x40000000);
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return -1;
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}
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int
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vga_jazzio_match(struct device *parent, struct cfdata *match, void *aux)
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{
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struct jazzio_attach_args *ja = aux;
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bus_space_tag_t iot, memt;
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if (vga_jazzio_init_tag(ja->ja_name, &iot, &memt))
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return 0;
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if (!vga_is_console(iot, WSDISPLAY_TYPE_JAZZVGA) &&
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!vga_common_probe(iot, memt))
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return 0;
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return 1;
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}
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void
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vga_jazzio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct vga_softc *sc = (void *)self;
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struct jazzio_attach_args *ja = aux;
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bus_space_tag_t iot, memt;
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printf("\n");
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vga_jazzio_init_tag(ja->ja_name, &iot, &memt);
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vga_common_attach(sc, iot, memt, WSDISPLAY_TYPE_JAZZVGA, 0,
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&vga_jazzio_funcs);
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}
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int
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vga_jazzio_cnattach(char *name)
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{
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bus_space_tag_t iot, memt;
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if (vga_jazzio_init_tag(name, &iot, &memt))
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return ENXIO;
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return vga_cnattach(iot, memt, WSDISPLAY_TYPE_JAZZVGA, 1);
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}
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