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[netbsd-mini2440.git] / sys / arch / hp300 / dev / grf_dv.c

/*      $NetBSD: grf_dv.c,v 1.39 2008/03/29 06:47:07 tsutsui Exp $      */

/*-
 * 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) 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 $Hdr: grf_dv.c 1.12 93/08/13$
 *
 *      @(#)grf_dv.c    8.4 (Berkeley) 1/12/94
 */
/*
 * Copyright (c) 1988 University of Utah.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by the University of
 *      California, Berkeley and its contributors.
 * 4. 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 $Hdr: grf_dv.c 1.12 93/08/13$
 *
 *      @(#)grf_dv.c    8.4 (Berkeley) 1/12/94
 */

/*
 * Graphics routines for the DaVinci, HP98730/98731 Graphics system.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: grf_dv.c,v 1.39 2008/03/29 06:47:07 tsutsui Exp $");

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/device.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/tty.h>

#include <uvm/uvm_extern.h>

#include <machine/autoconf.h>
#include <machine/cpu.h>

#include <dev/cons.h>

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

#include <hp300/dev/grfioctl.h>
#include <hp300/dev/grfvar.h>
#include <hp300/dev/grfreg.h>
#include <hp300/dev/grf_dvreg.h>

#include <hp300/dev/itevar.h>
#include <hp300/dev/itereg.h>

#include "ite.h"

static int      dv_init(struct grf_data *, int, uint8_t *);
static int      dv_mode(struct grf_data *, int, void *);
static void     dv_reset(struct dvboxfb *);

static int      dvbox_intio_match(device_t, cfdata_t, void *);
static void     dvbox_intio_attach(device_t, device_t, void *);

static int      dvbox_dio_match(device_t, cfdata_t, void *);
static void     dvbox_dio_attach(device_t, device_t, void *);

int     dvboxcnattach(bus_space_tag_t, bus_addr_t, int);

CFATTACH_DECL_NEW(dvbox_intio, sizeof(struct grfdev_softc),
    dvbox_intio_match, dvbox_intio_attach, NULL, NULL);

CFATTACH_DECL_NEW(dvbox_dio, sizeof(struct grfdev_softc),
    dvbox_dio_match, dvbox_dio_attach, NULL, NULL);

/* DaVinci grf switch */
static struct grfsw dvbox_grfsw = {
        GID_DAVINCI, GRFDAVINCI, "dvbox", dv_init, dv_mode
};

static int dvconscode;
static void *dvconaddr;

#if NITE > 0
static void     dvbox_init(struct ite_data *);
static void     dvbox_deinit(struct ite_data *);
static void     dvbox_putc(struct ite_data *, int, int, int, int);
static void     dvbox_cursor(struct ite_data *, int);
static void     dvbox_clear(struct ite_data *, int, int, int, int);
static void     dvbox_scroll(struct ite_data *, int, int, int, int);
static void     dvbox_windowmove(struct ite_data *, int, int, int, int,
                        int, int, int);

/* DaVinci ite switch */
static struct itesw dvbox_itesw = {
        dvbox_init, dvbox_deinit, dvbox_clear, dvbox_putc,
        dvbox_cursor, dvbox_scroll, ite_readbyte, ite_writeglyph
};
#endif /* NITE > 0 */

static int
dvbox_intio_match(device_t parent, cfdata_t cf, void *aux)
{
        struct intio_attach_args *ia = aux;
        struct grfreg *grf;

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

        if (badaddr((void *)ia->ia_addr))
                return 0;

        grf = (struct grfreg *)ia->ia_addr;

        if (grf->gr_id == DIO_DEVICE_ID_FRAMEBUFFER &&
            grf->gr_id2 == DIO_DEVICE_SECID_DAVINCI) {
                return 1;
        }

        return 0;
}

static void
dvbox_intio_attach(device_t parent, device_t self, void *aux)
{
        struct grfdev_softc *sc = device_private(self);
        struct intio_attach_args *ia = aux;
        void *grf;

        sc->sc_dev = self;

        grf = (void *)ia->ia_addr;
        sc->sc_scode = -1;      /* XXX internal i/o */

        sc->sc_isconsole = (sc->sc_scode == dvconscode);
        grfdev_attach(sc, dv_init, grf, &dvbox_grfsw);
}

static int
dvbox_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_DAVINCI)
                return 1;

        return 0;
}

static void
dvbox_dio_attach(device_t parent, device_t self, void *aux)
{
        struct grfdev_softc *sc = device_private(self);
        struct dio_attach_args *da = aux;
        bus_space_handle_t bsh;
        void *grf;

        sc->sc_dev = self;
        sc->sc_scode = da->da_scode;
        if (sc->sc_scode == dvconscode)
                grf = dvconaddr;
        else {
                if (bus_space_map(da->da_bst, da->da_addr, da->da_size,
                    0, &bsh)) {
                        aprint_error(": can't map framebuffer\n");
                        return;
                }
                grf = bus_space_vaddr(da->da_bst, bsh);
        }

        sc->sc_isconsole = (sc->sc_scode == dvconscode);
        grfdev_attach(sc, dv_init, grf, &dvbox_grfsw);
}

/*
 * Initialize hardware.
 * Must point g_display at a grfinfo structure describing the hardware.
 * Returns 0 if hardware not present, non-zero ow.
 */
static int
dv_init(struct grf_data *gp, int scode, uint8_t *addr)
{
        struct dvboxfb *dbp;
        struct grfinfo *gi = &gp->g_display;
        int fboff;

        /*
         * If the console has been initialized, and it was us, there's
         * no need to repeat this.
         */
        if (scode != dvconscode) {
                dbp = (struct dvboxfb *)addr;
                if (ISIIOVA(addr))
                        gi->gd_regaddr = (void *)IIOP(addr);
                else
                        gi->gd_regaddr = dio_scodetopa(scode);
                gi->gd_regsize = 0x20000;
                gi->gd_fbwidth = (dbp->fbwmsb << 8) | dbp->fbwlsb;
                gi->gd_fbheight = (dbp->fbhmsb << 8) | dbp->fbhlsb;
                gi->gd_fbsize = gi->gd_fbwidth * gi->gd_fbheight;
                        fboff = (dbp->fbomsb << 8) | dbp->fbolsb;
                gi->gd_fbaddr = (void *)(*(addr + fboff) << 16);
                if ((vaddr_t)gi->gd_regaddr >= DIOIIBASE) {
                        /*
                         * For DIO II space the fbaddr just computed is
                         * the offset from the select code base (regaddr)
                         * of the framebuffer.  Hence it is also implicitly
                         * the size of the set.
                         */
                        gi->gd_regsize = (int)gi->gd_fbaddr;
                        gi->gd_fbaddr += (int)gi->gd_regaddr;
                        gp->g_regkva = addr;
                        gp->g_fbkva = addr + gi->gd_regsize;
                } else {
                        /*
                         * For DIO space we need to map the separate
                         * framebuffer.
                         */
                        gp->g_regkva = addr;
                        gp->g_fbkva = iomap(gi->gd_fbaddr, gi->gd_fbsize);
                }
                gi->gd_dwidth = (dbp->dwmsb << 8) | dbp->dwlsb;
                gi->gd_dheight = (dbp->dwmsb << 8) | dbp->dwlsb;
                gi->gd_planes = 0;      /* ?? */
                gi->gd_colors = 256;

                dv_reset(dbp);
        }
        return 1;
}

/*
 *  Magic code herein.
 */
void
dv_reset(struct dvboxfb *dbp)
{
        dbp->reset = 0x80;
        DELAY(100);

        dbp->interrupt = 0x04;
        dbp->en_scan   = 0x01;
        dbp->fbwen     = ~0;
        dbp->opwen     = ~0;
        dbp->fold      = 0x01;
        dbp->drive     = 0x01;
        dbp->rep_rule  = 0x33;
        dbp->alt_rr    = 0x33;
        dbp->zrr       = 0x33;

        dbp->fbvenp    = 0xFF;
        dbp->dispen    = 0x01;
        dbp->fbvens    = 0x0;
        dbp->fv_trig   = 0x01;
        DELAY(100);
        dbp->vdrive    = 0x0;
        dbp->zconfig   = 0x0;

        while (dbp->wbusy & 0x01)
          DELAY(100);

        dbp->cmapbank = 0;

        dbp->red0   = 0;
        dbp->red1   = 0;
        dbp->green0 = 0;
        dbp->green1 = 0;
        dbp->blue0  = 0;
        dbp->blue1  = 0;

        dbp->panxh   = 0;
        dbp->panxl   = 0;
        dbp->panyh   = 0;
        dbp->panyl   = 0;
        dbp->zoom    = 0;
        dbp->cdwidth = 0x50;
        dbp->chstart = 0x52;
        dbp->cvwidth = 0x22;
        dbp->pz_trig = 1;
}

/*
 * Change the mode of the display.
 * Right now all we can do is grfon/grfoff.
 * Return a UNIX error number or 0 for success.
 */
static int
dv_mode(struct grf_data *gp, int cmd, void *data)
{
        struct dvboxfb *dbp;
        int error = 0;

        dbp = (struct dvboxfb *) gp->g_regkva;
        switch (cmd) {
        case GM_GRFON:
                dbp->dispen = 0x01;
                break;

        case GM_GRFOFF:
                break;

        case GM_GRFOVON:
                dbp->opwen = 0xF;
                dbp->drive = 0x10;
                break;

        case GM_GRFOVOFF:
                dbp->opwen = 0;
                dbp->drive = 0x01;
                break;

        /*
         * Remember UVA of mapping for GCDESCRIBE.
         * XXX this should be per-process.
         */
        case GM_MAP:
                gp->g_data = data;
                break;

        case GM_UNMAP:
                gp->g_data = 0;
                break;

        default:
                error = EINVAL;
                break;
        }
        return error;
}

#if NITE > 0

/*
 * DaVinci ite routines
 */

#define REGBASE         ((struct dvboxfb *)(ip->regbase))
#define WINDOWMOVER     dvbox_windowmove

static void
dvbox_init(struct ite_data *ip)
{
        int i;

        /* XXX */
        if (ip->regbase == 0) {
                struct grf_data *gp = ip->grf;

                ip->regbase = gp->g_regkva;
                ip->fbbase = gp->g_fbkva;
                ip->fbwidth = gp->g_display.gd_fbwidth;
                ip->fbheight = gp->g_display.gd_fbheight;
                ip->dwidth = gp->g_display.gd_dwidth;
                ip->dheight = gp->g_display.gd_dheight;
                /*
                 * XXX some displays (e.g. the davinci) appear
                 * to return a display height greater than the
                 * returned FB height.  Guess we should go back
                 * to getting the display dimensions from the
                 * fontrom...
                 */
                if (ip->dwidth > ip->fbwidth)
                        ip->dwidth = ip->fbwidth;
                if (ip->dheight > ip->fbheight)
                        ip->dheight = ip->fbheight;
        }

        dv_reset((struct dvboxfb *)ip->regbase);

        /*
         * Turn on frame buffer, turn on overlay planes, set replacement
         * rule, enable top overlay plane writes for ite, disable all frame
         * buffer planes, set byte per pixel, and display frame buffer 0.
         * Lastly, turn on the box.
         */
        REGBASE->interrupt = 0x04;
        REGBASE->drive     = 0x10;
        REGBASE->rep_rule  = RR_COPY << 4 | RR_COPY;
        REGBASE->opwen     = 0x01;
        REGBASE->fbwen     = 0x0;
        REGBASE->fold      = 0x01;
        REGBASE->vdrive    = 0x0;
        REGBASE->dispen    = 0x01;

        /*
         * Video enable top overlay plane.
         */
        REGBASE->opvenp = 0x01;
        REGBASE->opvens = 0x01;

        /*
         * Make sure that overlay planes override frame buffer planes.
         */
        REGBASE->ovly0p  = 0x0;
        REGBASE->ovly0s  = 0x0;
        REGBASE->ovly1p  = 0x0;
        REGBASE->ovly1s  = 0x0;
        REGBASE->fv_trig = 0x1;
        DELAY(100);

        /*
         * Setup the overlay colormaps. Need to set the 0,1 (black/white)
         * color for both banks.
         */

        for (i = 0; i <= 1; i++) {
                REGBASE->cmapbank = i;
                REGBASE->rgb[0].red   = 0x00;
                REGBASE->rgb[0].green = 0x00;
                REGBASE->rgb[0].blue  = 0x00;
                REGBASE->rgb[1].red   = 0xFF;
                REGBASE->rgb[1].green = 0xFF;
                REGBASE->rgb[1].blue  = 0xFF;
        }
        REGBASE->cmapbank = 0;

        db_waitbusy(ip->regbase);

        ite_fontinfo(ip);
        ite_fontinit(ip);

        /*
         * Clear the (visible) framebuffer.
         */
        dvbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
        db_waitbusy(ip->regbase);

        /*
         * Stash the inverted cursor.
         */
        dvbox_windowmove(ip, charY(ip, ' '), charX(ip, ' '),
                         ip->cblanky, ip->cblankx, ip->ftheight,
                         ip->ftwidth, RR_COPYINVERTED);
}

static void
dvbox_deinit(struct ite_data *ip)
{
        dvbox_windowmove(ip, 0, 0, 0, 0, ip->fbheight, ip->fbwidth, RR_CLEAR);
        db_waitbusy(ip->regbase);

        ip->flags &= ~ITE_INITED;
}

static void
dvbox_putc(struct ite_data *ip, int c, int dy, int dx, int mode)
{
        int wrr = ((mode == ATTR_INV) ? RR_COPYINVERTED : RR_COPY);

        dvbox_windowmove(ip, charY(ip, c), charX(ip, c),
                         dy * ip->ftheight, dx * ip->ftwidth,
                         ip->ftheight, ip->ftwidth, wrr);
}

static void
dvbox_cursor(struct ite_data *ip, int flag)
{
        if (flag == DRAW_CURSOR)
                draw_cursor(ip)
        else if (flag == MOVE_CURSOR) {
                erase_cursor(ip)
                draw_cursor(ip)
        }
        else
                erase_cursor(ip)
}

static void
dvbox_clear(struct ite_data *ip, int sy, int sx, int h, int w)
{
        dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
                         sy * ip->ftheight, sx * ip->ftwidth,
                         h  * ip->ftheight, w  * ip->ftwidth,
                         RR_CLEAR);
}

static void
dvbox_scroll(struct ite_data *ip, int sy, int sx, int count, int dir)
{
        int dy;
        int dx = sx;
        int height = 1;
        int width = ip->cols;

        if (dir == SCROLL_UP) {
                dy = sy - count;
                height = ip->rows - sy;
        }
        else if (dir == SCROLL_DOWN) {
                dy = sy + count;
                height = ip->rows - dy - 1;
        }
        else if (dir == SCROLL_RIGHT) {
                dy = sy;
                dx = sx + count;
                width = ip->cols - dx;
        }
        else {
                dy = sy;
                dx = sx - count;
                width = ip->cols - sx;
        }

        dvbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
                         dy * ip->ftheight, dx * ip->ftwidth,
                         height * ip->ftheight,
                         width  * ip->ftwidth, RR_COPY);
}

static void
dvbox_windowmove(struct ite_data *ip, int sy, int sx, int dy, int dx, int h,
    int w, int func)
{
        struct dvboxfb *dp = REGBASE;
        if (h == 0 || w == 0)
                return;

        db_waitbusy(ip->regbase);
        dp->rep_rule = func << 4 | func;
        dp->source_y = sy;
        dp->source_x = sx;
        dp->dest_y   = dy;
        dp->dest_x   = dx;
        dp->wheight  = h;
        dp->wwidth   = w;
        dp->wmove    = 1;
}

/*
 * DaVinci console support
 */

int
dvboxcnattach(bus_space_tag_t bst, bus_addr_t addr, int scode)
{
        bus_space_handle_t bsh;
        void *va;
        struct grfreg *grf;
        struct grf_data *gp = &grf_cn;
        int size;

        if (bus_space_map(bst, addr, PAGE_SIZE, 0, &bsh))
                return 1;
        va = bus_space_vaddr(bst, bsh);
        grf = (struct grfreg *)va;

        if (badaddr(va) ||
            (grf->gr_id != GRFHWID) || (grf->gr_id2 != GID_DAVINCI)) {
                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.
         */
        (void)dv_init(gp, scode, va);
        dvconscode = scode;
        dvconaddr = va;

        /*
         * Set up required grf data.
        */
        gp->g_sw = &dvbox_grfsw;
        gp->g_display.gd_id = gp->g_sw->gd_swid;
        gp->g_flags = GF_ALIVE;

        /*
         * Initialize the terminal emulator.
        */
        itedisplaycnattach(gp, &dvbox_itesw);
        return 0;
}

#endif /* NITE > 0 */