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

/*      $NetBSD: grf_gb.c,v 1.38 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 $Hdr: grf_gb.c 1.18 93/08/13$
 *
 *      @(#)grf_gb.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 $Hdr: grf_gb.c 1.18 93/08/13$
 *
 *      @(#)grf_gb.c    8.4 (Berkeley) 1/12/94
 */

/*
 * Graphics routines for the Gatorbox.
 *
 * Note: In the context of this system, "gator" and "gatorbox" both refer to
 *       HP 987x0 graphics systems.  "Gator" is not used for high res mono.
 *       (as in 9837 Gator systems)
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: grf_gb.c,v 1.38 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_gbreg.h>

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

#include "ite.h"

#define CRTC_DATA_LENGTH  0x0e
static uint8_t crtc_init_data[CRTC_DATA_LENGTH] = {
        0x29, 0x20, 0x23, 0x04, 0x30, 0x0b, 0x30,
        0x30, 0x00, 0x0f, 0x00, 0x00, 0x00, 0x00
};

static int      gb_init(struct grf_data *gp, int, uint8_t *);
static int      gb_mode(struct grf_data *gp, int, void *);
static void     gb_microcode(struct gboxfb *);

static int      gbox_intio_match(device_t, cfdata_t, void *);
static void     gbox_intio_attach(device_t, device_t, void *);

static int      gbox_dio_match(device_t, cfdata_t, void *);
static void     gbox_dio_attach(device_t, device_t, void *);

int     gboxcnattach(bus_space_tag_t, bus_addr_t, int);

CFATTACH_DECL_NEW(gbox_intio, sizeof(struct grfdev_softc),
    gbox_intio_match, gbox_intio_attach, NULL, NULL);

CFATTACH_DECL_NEW(gbox_dio, sizeof(struct grfdev_softc),
    gbox_dio_match, gbox_dio_attach, NULL, NULL);

/* Gatorbox grf switch */
static struct grfsw gbox_grfsw = {
        GID_GATORBOX, GRFGATOR, "gatorbox", gb_init, gb_mode
};

static int gbconscode;
static void *gbconaddr;

#if NITE > 0
static void     gbox_init(struct ite_data *);
static void     gbox_deinit(struct ite_data *);
static void     gbox_putc(struct ite_data *, int, int, int, int);
static void     gbox_cursor(struct ite_data *, int);
static void     gbox_clear(struct ite_data *, int, int, int, int);
static void     gbox_scroll(struct ite_data *, int, int, int, int);
static void     gbox_windowmove(struct ite_data *, int, int, int, int,
                        int, int, int);

/* Gatorbox ite switch */
static struct itesw gbox_itesw = {
        gbox_init, gbox_deinit, gbox_clear, gbox_putc,
        gbox_cursor, gbox_scroll, ite_readbyte, ite_writeglyph
};
#endif /* NITE > 0 */

static int
gbox_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_GATORBOX) {
                return 1;
        }

        return 0;
}

static void
gbox_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 == gbconscode);
        grfdev_attach(sc, gb_init, grf, &gbox_grfsw);
}

static int
gbox_dio_match(device_t parent, cfdata_t match, void *aux)
{
        struct dio_attach_args *da = aux;

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

        return 0;
}

static void
gbox_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 == gbconscode)
                grf = gbconaddr;
        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 == gbconscode);
        grfdev_attach(sc, gb_init, grf, &gbox_grfsw);
}

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

        /*
         * If the console has been initialized, and it was us, there's
         * no need to repeat this.
         */
        if (scode != gbconscode) {
                gbp = (struct gboxfb *)addr;
                if (ISIIOVA(addr))
                        gi->gd_regaddr = (void *)IIOP(addr);
                else
                        gi->gd_regaddr = dio_scodetopa(scode);
                gi->gd_regsize = 0x10000;
                gi->gd_fbwidth = 1024;          /* XXX */
                gi->gd_fbheight = 1024;         /* XXX */
                gi->gd_fbsize = gi->gd_fbwidth * gi->gd_fbheight;
                fboff = (gbp->fbomsb << 8) | gbp->fbolsb;
                gi->gd_fbaddr = (void *)(*(addr + fboff) << 16);
                gp->g_regkva = addr;
                gp->g_fbkva = iomap(gi->gd_fbaddr, gi->gd_fbsize);
                gi->gd_dwidth = 1024;           /* XXX */
                gi->gd_dheight = 768;           /* XXX */
                gi->gd_planes = 0;              /* how do we do this? */
                /*
                 * The minimal info here is from the Gatorbox X driver.
                 */
                fbp = gp->g_fbkva;
                gbp->write_protect = 0;
                gbp->interrupt = 4;             /** fb_enable ? **/
                gbp->rep_rule = 3;              /* GXcopy */
                gbp->blink1 = 0xff;
                gbp->blink2 = 0xff;

                gb_microcode(gbp);

                /*
                 * Find out how many colors are available by determining
                 * which planes are installed.  That is, write all ones to
                 * a frame buffer location, see how many ones are read back.
                 */
                save = *fbp;
                *fbp = 0xFF;
                gi->gd_colors = *fbp + 1;
                *fbp = save;
        }
        return 1;
}

/*
 * Program the 6845.
 */
void
gb_microcode(struct gboxfb *gbp)
{
        int i;

        for (i = 0; i < CRTC_DATA_LENGTH; i++) {
                gbp->crtc_address = i;
                gbp->crtc_data = crtc_init_data[i];
        }
}

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

        gbp = (struct gboxfb *)gp->g_regkva;
        switch (cmd) {
        case GM_GRFON:
                gbp->sec_interrupt = 1;
                break;

        case GM_GRFOFF:
                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

/*
 * Gatorbox ite routines
 */

#define REGBASE         ((struct gboxfb *)(ip->regbase))
#define WINDOWMOVER     gbox_windowmove

static void
gbox_init(struct ite_data *ip)
{
        /* 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;
        }

        REGBASE->write_protect = 0x0;
        REGBASE->interrupt = 0x4;
        REGBASE->rep_rule = RR_COPY;
        REGBASE->blink1 = 0xff;
        REGBASE->blink2 = 0xff;
        gb_microcode((struct gboxfb *)ip->regbase);
        REGBASE->sec_interrupt = 0x01;

        /*
         * Set up the color map entries. We use three entries in the
         * color map. The first, is for black, the second is for
         * white, and the very last entry is for the inverted cursor.
         */
        REGBASE->creg_select = 0x00;
        REGBASE->cmap_red    = 0x00;
        REGBASE->cmap_grn    = 0x00;
        REGBASE->cmap_blu    = 0x00;
        REGBASE->cmap_write  = 0x00;
        gbcm_waitbusy(ip->regbase);

        REGBASE->creg_select = 0x01;
        REGBASE->cmap_red    = 0xFF;
        REGBASE->cmap_grn    = 0xFF;
        REGBASE->cmap_blu    = 0xFF;
        REGBASE->cmap_write  = 0x01;
        gbcm_waitbusy(ip->regbase);

        REGBASE->creg_select = 0xFF;
        REGBASE->cmap_red    = 0xFF;
        REGBASE->cmap_grn    = 0xFF;
        REGBASE->cmap_blu    = 0xFF;
        REGBASE->cmap_write  = 0x01;
        gbcm_waitbusy(ip->regbase);

        ite_fontinfo(ip);
        ite_fontinit(ip);

        /*
         * Clear the display. This used to be before the font unpacking
         * but it crashes. Figure it out later.
         */
        gbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
        tile_mover_waitbusy(ip->regbase);

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

static void
gbox_deinit(struct ite_data *ip)
{
        gbox_windowmove(ip, 0, 0, 0, 0, ip->dheight, ip->dwidth, RR_CLEAR);
        tile_mover_waitbusy(ip->regbase);

        ip->flags &= ~ITE_INITED;
}

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

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

static void
gbox_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
gbox_clear(struct ite_data *ip, int sy, int sx, int h, int w)
{
        gbox_windowmove(ip, sy * ip->ftheight, sx * ip->ftwidth,
                        sy * ip->ftheight, sx * ip->ftwidth,
                        h  * ip->ftheight, w  * ip->ftwidth,
                        RR_CLEAR);
}
#define gbox_blockmove(ip, sy, sx, dy, dx, h, w) \
        gbox_windowmove((ip), \
                        (sy) * ip->ftheight, \
                        (sx) * ip->ftwidth, \
                        (dy) * ip->ftheight, \
                        (dx) * ip->ftwidth, \
                        (h)  * ip->ftheight, \
                        (w)  * ip->ftwidth, \
                        RR_COPY)

static void
gbox_scroll(struct ite_data *ip, int sy, int sx, int count, int dir)
{
        int height, dy, i;

        tile_mover_waitbusy(ip->regbase);
        REGBASE->write_protect = 0x0;

        if (dir == SCROLL_UP) {
                dy = sy - count;
                height = ip->rows - sy;
                for (i = 0; i < height; i++)
                        gbox_blockmove(ip, sy + i, sx, dy + i, 0, 1, ip->cols);
        }
        else if (dir == SCROLL_DOWN) {
                dy = sy + count;
                height = ip->rows - dy;
                for (i = (height - 1); i >= 0; i--)
                        gbox_blockmove(ip, sy + i, sx, dy + i, 0, 1, ip->cols);
        }
        else if (dir == SCROLL_RIGHT) {
                gbox_blockmove(ip, sy, sx, sy, sx + count,
                               1, ip->cols - (sx + count));
        }
        else {
                gbox_blockmove(ip, sy, sx, sy, sx - count,
                               1, ip->cols - sx);
        }
}

static void
gbox_windowmove(struct ite_data *ip, int sy, int sx, int dy, int dx, int h,
    int w, int mask)
{
        int src, dest;

        src  = (sy * 1024) + sx;        /* upper left corner in pixels */
        dest = (dy * 1024) + dx;

        tile_mover_waitbusy(ip->regbase);
        REGBASE->width = -(w / 4);
        REGBASE->height = -(h / 4);
        if (src < dest)
                REGBASE->rep_rule = MOVE_DOWN_RIGHT|mask;
        else {
                REGBASE->rep_rule = MOVE_UP_LEFT|mask;
                /*
                 * Adjust to top of lower right tile of the block.
                 */
                src = src + ((h - 4) * 1024) + (w - 4);
                dest= dest + ((h - 4) * 1024) + (w - 4);
        }
        FBBASE[dest] = FBBASE[src];
}

/*
 * Gatorbox console support
 */
int
gboxcnattach(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_GATORBOX)) {
                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)gb_init(gp, scode, va);
        gbconscode = scode;
        gbconaddr = va;

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

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

#endif /* NITE > 0 */