* Copyright (c) 2005, Miodrag Vallat

/* $NetBSD: rbox.c,v 1.5 2025/05/27 18:44:31 tsutsui Exp $ */
/* $OpenBSD: rbox.c,v 1.14 2006/08/11 18:33:13 miod Exp $ */

/*
* Copyright (c) 2005, Miodrag Vallat
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: Utah $Hdr: grf_rb.c 1.15 93/08/13$
*
* @(#)grf_rb.c 8.4 (Berkeley) 1/12/94
*/

/*
* Graphics routines for the Renaissance, HP98720 Graphics system.
*/

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/ioctl.h>
#include <sys/bus.h>
#include <sys/cpu.h>

#include <machine/autoconf.h>

#include <hp300/dev/dioreg.h>
#include <hp300/dev/diovar.h>
#include <hp300/dev/diodevs.h>
#include <hp300/dev/intiovar.h>

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

#include <hp300/dev/diofbreg.h>
#include <hp300/dev/diofbvar.h>
#include <hp300/dev/rboxreg.h>

struct rbox_softc {
device_t sc_dev;
struct diofb *sc_fb;
struct diofb sc_fb_store;
int sc_scode;
};

static int rbox_dio_match(device_t, cfdata_t, void *);
static void rbox_dio_attach(device_t, device_t, void *);
static int rbox_intio_match(device_t, cfdata_t, void *);
static void rbox_intio_attach(device_t, device_t, void *);

CFATTACH_DECL_NEW(rbox_dio, sizeof(struct rbox_softc),
rbox_dio_match, rbox_dio_attach, NULL, NULL);

CFATTACH_DECL_NEW(rbox_intio, sizeof(struct rbox_softc),
rbox_intio_match, rbox_intio_attach, NULL, NULL);

static int rbox_reset(struct diofb *, int, struct diofbreg *);
static void rbox_restore(struct diofb *);
static int rbox_windowmove(struct diofb *, uint16_t, uint16_t, uint16_t,
uint16_t, uint16_t, uint16_t, int16_t, int16_t);

static int rbox_ioctl(void *, void *, u_long, void *, int, struct lwp *);

static struct wsdisplay_accessops rbox_accessops = {
.ioctl = rbox_ioctl,
.mmap = diofb_mmap,
.alloc_screen = diofb_alloc_screen,
.free_screen = diofb_free_screen,
.show_screen = diofb_show_screen,
.load_font = NULL,
};

/*
* Attachment glue
*/

int
rbox_intio_match(device_t parent, cfdata_t cf, void *aux)
{
struct intio_attach_args *ia = aux;
struct diofbreg *fbr;

if (strcmp("fb", ia->ia_modname) != 0)
return 0;

fbr = (struct diofbreg *)ia->ia_addr;

if (badaddr((void *)fbr))
return 0;

if (fbr->id == GRFHWID && fbr->fbid == GID_RENAISSANCE) {
return 1;
}

return 0;
}

void
rbox_intio_attach(device_t parent, device_t self, void *aux)
{
struct rbox_softc *sc = device_private(self);
struct intio_attach_args *ia = aux;
struct diofbreg *fbr;

sc->sc_dev = self;
fbr = (struct diofbreg *)ia->ia_addr;
sc->sc_scode = CONSCODE_INTERNAL;

if (sc->sc_scode == conscode) {
sc->sc_fb = &diofb_cn;
} else {
sc->sc_fb = &sc->sc_fb_store;
rbox_reset(sc->sc_fb, sc->sc_scode, fbr);
}

diofb_end_attach(self, &rbox_accessops, sc->sc_fb,
sc->sc_scode == conscode, NULL);
}

int
rbox_dio_match(device_t parent, cfdata_t cf, void *aux)
{
struct dio_attach_args *da = aux;

if (da->da_id == DIO_DEVICE_ID_FRAMEBUFFER &&
da->da_secid == DIO_DEVICE_SECID_RENAISSANCE)
return 1;

return 0;
}

void
rbox_dio_attach(device_t parent, device_t self, void *aux)
{
struct rbox_softc *sc = device_private(self);
struct dio_attach_args *da = aux;
bus_space_handle_t bsh;
struct diofbreg *fbr;

sc->sc_dev = self;
sc->sc_scode = da->da_scode;
if (sc->sc_scode == conscode) {
fbr = (struct diofbreg *)conaddr; /* already mapped */
sc->sc_fb = &diofb_cn;
} else {
sc->sc_fb = &sc->sc_fb_store;
if (bus_space_map(da->da_bst, da->da_addr, da->da_size,
0, &bsh)) {
aprint_error(": can't map framebuffer\n");
return;
}
fbr = bus_space_vaddr(da->da_bst, bsh);
if (rbox_reset(sc->sc_fb, sc->sc_scode, fbr) != 0) {
aprint_error(": can't reset framebuffer\n");
return;
}
}

diofb_end_attach(self, &rbox_accessops, sc->sc_fb,
sc->sc_scode == conscode, NULL);
}

/*
* Initialize hardware and display routines.
*/
int
rbox_reset(struct diofb *fb, int scode, struct diofbreg *fbr)
{
int rc;

if ((rc = diofb_fbinquire(fb, scode, fbr)) != 0)
return rc;

/*
* Restrict the framebuffer to a monochrome view for now, until
* I know better how to detect and frob overlay planes, and
* setup a proper colormap. -- miod
*/
fb->planes = fb->planemask = 1;

fb->bmv = rbox_windowmove;
rbox_restore(fb);
diofb_fbsetup(fb);

return 0;
}

void
rbox_restore(struct diofb *fb)
{
volatile struct rboxfb *rb = (struct rboxfb *)fb->regkva;
u_int i;

rb_waitbusy(rb);

rb->regs.id = GRFHWID; /* trigger reset */
DELAY(1000);

rb->regs.interrupt = 0x04;
rb->video_enable = 0x01;
rb->drive = 0x01;
rb->vdrive = 0x0;

rb->opwen = 0xFF;

/*
* Clear color map
*/
rb_waitbusy(fb->regkva);
for (i = 0; i < 16; i++) {
*(fb->regkva + 0x63c3 + i*4) = 0x0;
*(fb->regkva + 0x6403 + i*4) = 0x0;
*(fb->regkva + 0x6803 + i*4) = 0x0;
*(fb->regkva + 0x6c03 + i*4) = 0x0;
*(fb->regkva + 0x73c3 + i*4) = 0x0;
*(fb->regkva + 0x7403 + i*4) = 0x0;
*(fb->regkva + 0x7803 + i*4) = 0x0;
*(fb->regkva + 0x7c03 + i*4) = 0x0;
}

rb->rep_rule = RBOX_DUALROP(RR_COPY);

/*
* I cannot figure out how to make the blink planes stop. So, we
* must set both colormaps so that when the planes blink, and
* the secondary colormap is active, we still get text.
*/
CM1RED(fb)[0x00].value = 0x00;
CM1GRN(fb)[0x00].value = 0x00;
CM1BLU(fb)[0x00].value = 0x00;
CM1RED(fb)[0x01].value = 0xFF;
CM1GRN(fb)[0x01].value = 0xFF;
CM1BLU(fb)[0x01].value = 0xFF;

CM2RED(fb)[0x00].value = 0x00;
CM2GRN(fb)[0x00].value = 0x00;
CM2BLU(fb)[0x00].value = 0x00;
CM2RED(fb)[0x01].value = 0xFF;
CM2GRN(fb)[0x01].value = 0xFF;
CM2BLU(fb)[0x01].value = 0xFF;

rb->blink = 0x00;
rb->write_enable = 0x01;
rb->opwen = 0x00;

/* enable display */
rb->display_enable = 0x01;
}

int
rbox_ioctl(void *v, void *vs, u_long cmd, void *data, int flags, struct lwp *l)
{
struct diofb *fb = v;
struct wsdisplay_fbinfo *wdf;

switch (cmd) {
case WSDISPLAYIO_GTYPE:
*(u_int *)data = WSDISPLAY_TYPE_RBOX;
return 0;
case WSDISPLAYIO_SMODE:
fb->mapmode = *(u_int *)data;
if (fb->mapmode == WSDISPLAYIO_MODE_EMUL)
rbox_restore(fb);
return 0;
case WSDISPLAYIO_GINFO:
wdf = (void *)data;
wdf->width = fb->ri.ri_width;
wdf->height = fb->ri.ri_height;
wdf->depth = fb->ri.ri_depth;
wdf->cmsize = 0; /* XXX */
return 0;
case WSDISPLAYIO_LINEBYTES:
*(u_int *)data = fb->ri.ri_stride;
return 0;
case WSDISPLAYIO_GETCMAP:
case WSDISPLAYIO_PUTCMAP:
/* XXX until color support is implemented */
return EPASSTHROUGH;
case WSDISPLAYIO_GVIDEO:
case WSDISPLAYIO_SVIDEO:
return EPASSTHROUGH;
}

return EPASSTHROUGH;
}

int
rbox_windowmove(struct diofb *fb, uint16_t sx, uint16_t sy,
uint16_t dx, uint16_t dy, uint16_t cx, uint16_t cy, int16_t rop,
int16_t planemask)
{
volatile struct rboxfb *rb = (struct rboxfb *)fb->regkva;

if (planemask != 0xff)
return EINVAL;

rb_waitbusy(rb);

rb->rep_rule = RBOX_DUALROP(rop);
rb->source_y = sy;
rb->source_x = sx;
rb->dest_y = dy;
rb->dest_x = dx;
rb->wheight = cy;
rb->wwidth = cx;
rb->wmove = 1;

rb_waitbusy(rb);

return 0;
}

/*
* Renaissance console support
*/
int
rboxcnattach(bus_space_tag_t bst, bus_addr_t addr, int scode)
{
bus_space_handle_t bsh;
void *va;
struct diofbreg *fbr;
struct diofb *fb = &diofb_cn;
int size;

if (bus_space_map(bst, addr, PAGE_SIZE, 0, &bsh))
return 1;
va = bus_space_vaddr(bst, bsh);
fbr = va;

if (badaddr(va) ||
(fbr->id != GRFHWID) || (fbr->fbid != GID_RENAISSANCE)) {
bus_space_unmap(bst, bsh, PAGE_SIZE);
return 1;
}

size = DIO_SIZE(scode, va);

bus_space_unmap(bst, bsh, PAGE_SIZE);
if (bus_space_map(bst, addr, size, 0, &bsh))
return 1;
va = bus_space_vaddr(bst, bsh);

/*
* Initialize the framebuffer hardware.
*/
conscode = scode;
conaddr = va;
rbox_reset(fb, conscode, (struct diofbreg *)conaddr);

/*
* Initialize the terminal emulator.
*/
diofb_cnattach(fb);
return 0;
}