/* $NetBSD: pccons_jazzio.c,v 1.11 2011/07/01 19:25:42 dyoung Exp $ */
/* NetBSD: vga_isa.c,v 1.4 2000/08/14 20:14:51 thorpej 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: pccons_jazzio.c,v 1.11 2011/07/01 19:25:42 dyoung Exp $");

#include <sys/param.h>
#include <sys/systm.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 <arc/dev/pcconsvar.h>
#include <arc/jazz/jazziovar.h>
#include <arc/jazz/pica.h>
#include <arc/jazz/pccons_jazziovar.h>

#define PCKBD_INTR 6    /* XXX - should be obtained from firmware */

static int      pccons_jazzio_match(device_t, cfdata_t, void *);
static void     pccons_jazzio_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(pc_jazzio, sizeof(struct pc_softc),
   pccons_jazzio_match, pccons_jazzio_attach, NULL, NULL);

/*
* chipset-dependent pccons configuration
*/

static void pccons_jazzio_init(void);

struct pccons_config pccons_jazzio_conf = {
       0x3b4, 0xb0000, /* mono: iobase, memaddr */
       0x3d4, 0xb8000, /* cga:  iobase, memaddr */
       PICA_SYS_KBD + 0x61, PICA_SYS_KBD + 0x60, /* kbdc: cmdport, dataport */
       pccons_jazzio_init
};

static void
pccons_jazzio_init(void)
{

       /* nothing to do */
}

static int pccons_jazzio_init_tag(const char *, bus_space_tag_t *,
   bus_space_tag_t *);

int
pccons_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;
}

static int
pccons_jazzio_match(device_t parent, cfdata_t cf, void *aux)
{
       struct jazzio_attach_args *ja = aux;
       bus_space_tag_t crt_iot, crt_memt;

       if (pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt))
               return 0;

       if (!pccons_common_match(crt_iot, crt_memt, ja->ja_bust,
           &pccons_jazzio_conf))
               return 0;

       return 1;
}

static void
pccons_jazzio_attach(device_t parent, device_t self, void *aux)
{
       struct pc_softc *sc = device_private(self);
       struct jazzio_attach_args *ja = aux;
       bus_space_tag_t crt_iot, crt_memt;

       pccons_jazzio_init_tag(ja->ja_name, &crt_iot, &crt_memt);
       jazzio_intr_establish(PCKBD_INTR, pcintr, sc);
       pccons_common_attach(sc, crt_iot, crt_memt, ja->ja_bust,
           &pccons_jazzio_conf);
}

int
pccons_jazzio_cnattach(char *name, bus_space_tag_t kbd_iot)
{
       bus_space_tag_t crt_iot, crt_memt;

       if (pccons_jazzio_init_tag(name, &crt_iot, &crt_memt))
               return ENXIO;
       pccons_common_cnattach(crt_iot, crt_memt, kbd_iot,
           &pccons_jazzio_conf);
       return 0;
}

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