/* $NetBSD: vga_jazzio.c,v 1.18 2023/12/20 06:36:02 thorpej Exp $ */
/* NetBSD: vga_isa.c,v 1.3 1998/06/12 18:45:48 drochner Exp  */

/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
*  Software Distribution Coordinator  or  [email protected]
*  School of Computer Science
*  Carnegie Mellon University
*  Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vga_jazzio.c,v 1.18 2023/12/20 06:36:02 thorpej Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <uvm/uvm_extern.h>

#include <machine/autoconf.h>
#include <sys/bus.h>
#include <machine/wired_map.h>

#include <mips/pte.h>

#include <dev/ic/mc6845reg.h>
#include <dev/ic/pcdisplayvar.h>
#include <dev/ic/vgareg.h>
#include <dev/ic/vgavar.h>

#include <arc/jazz/jazziovar.h>
#include <arc/jazz/pica.h>
#include <arc/jazz/vga_jazziovar.h>

#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsdisplayvar.h>

#define WSDISPLAY_TYPE_JAZZVGA  WSDISPLAY_TYPE_PCIVGA   /* XXX not really */

int     vga_jazzio_init_tag(const char *, bus_space_tag_t *, bus_space_tag_t *);
paddr_t vga_jazzio_mmap(void *, off_t, int);
int     vga_jazzio_match(device_t, cfdata_t, void *);
void    vga_jazzio_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(vga_jazzio, sizeof(struct vga_softc),
   vga_jazzio_match, vga_jazzio_attach, NULL, NULL);

const struct vga_funcs vga_jazzio_funcs = {
       NULL,
       vga_jazzio_mmap,
};

int
vga_jazzio_init_tag(const char *name, bus_space_tag_t *iotp,
   bus_space_tag_t *memtp)
{
       static int initialized = 0;
       static struct arc_bus_space vga_io, vga_mem;

       if (strcmp(name, "ALI_S3") != 0)
               return ENXIO;

       if (!initialized) {
               initialized = 1;

               arc_bus_space_init(&vga_io, "vga_jazzio_io",
                   PICA_P_LOCAL_VIDEO_CTRL, PICA_V_LOCAL_VIDEO_CTRL,
                   0, PICA_S_LOCAL_VIDEO_CTRL);
               arc_bus_space_init(&vga_mem, "vga_jazzio_mem",
                   PICA_P_LOCAL_VIDEO, PICA_V_LOCAL_VIDEO,
                   0, PICA_S_LOCAL_VIDEO);

               arc_wired_enter_page(PICA_V_LOCAL_VIDEO_CTRL,
                   PICA_P_LOCAL_VIDEO_CTRL,
                   PICA_S_LOCAL_VIDEO_CTRL / 2);
               arc_wired_enter_page(
                   PICA_V_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2,
                   PICA_P_LOCAL_VIDEO_CTRL + PICA_S_LOCAL_VIDEO_CTRL/2,
                   PICA_S_LOCAL_VIDEO_CTRL / 2);

               arc_wired_enter_page(PICA_V_LOCAL_VIDEO,
                   PICA_P_LOCAL_VIDEO,
                   PICA_S_LOCAL_VIDEO / 2);
               arc_wired_enter_page(
                   PICA_V_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
                   PICA_P_LOCAL_VIDEO + PICA_S_LOCAL_VIDEO / 2,
                   PICA_S_LOCAL_VIDEO / 2);
#if 0
               arc_wired_enter_page(PICA_V_EXTND_VIDEO_CTRL,
                   PICA_P_EXTND_VIDEO_CTRL,
                   PICA_S_EXTND_VIDEO_CTRL / 2);
               arc_wired_enter_page(
                   PICA_V_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
                   PICA_P_EXTND_VIDEO_CTRL + PICA_S_EXTND_VIDEO_CTRL / 2,
                   PICA_S_EXTND_VIDEO_CTRL / 2);
#endif
       }
       *iotp = &vga_io;
       *memtp = &vga_mem;
       return 0;
}

paddr_t
vga_jazzio_mmap(void *v, off_t offset, int prot)
{

       if (offset >= 0xa0000 && offset < 0xc0000)
               return mips_btop(PICA_P_LOCAL_VIDEO + offset);
       if (offset >= 0x0000 && offset < 0x10000)
               return mips_btop(PICA_P_LOCAL_VIDEO_CTRL + offset);
       if (offset >= 0x40000000 && offset < 0x40800000)
               return mips_btop(PICA_P_LOCAL_VIDEO + offset - 0x40000000);
       return -1;
}

int
vga_jazzio_match(device_t parent, cfdata_t match, void *aux)
{
       struct jazzio_attach_args *ja = aux;
       bus_space_tag_t iot, memt;

       if (vga_jazzio_init_tag(ja->ja_name, &iot, &memt))
               return 0;

       if (!vga_is_console(iot, WSDISPLAY_TYPE_JAZZVGA) &&
           !vga_common_probe(iot, memt))
               return 0;

       return 1;
}

void
vga_jazzio_attach(device_t parent, device_t self, void *aux)
{
       struct vga_softc *sc = device_private(self);
       struct jazzio_attach_args *ja = aux;
       bus_space_tag_t iot, memt;

       aprint_normal("\n");

       sc->sc_dev = self;
       vga_jazzio_init_tag(ja->ja_name, &iot, &memt);
       vga_common_attach(sc, iot, memt, WSDISPLAY_TYPE_JAZZVGA, 0,
           &vga_jazzio_funcs);
}

int
vga_jazzio_cnattach(char *name)
{
       bus_space_tag_t iot, memt;

       if (vga_jazzio_init_tag(name, &iot, &memt))
               return ENXIO;
       return vga_cnattach(iot, memt, WSDISPLAY_TYPE_JAZZVGA, 1);
}

You are viewing proxied material from ftp.icm.edu.pl. The copyright of proxied material belongs to its original authors. Any comments or complaints in relation to proxied material should be directed to the original authors of the content concerned. Please see the disclaimer for more details.