sys/dev/ic/i128.c

   1 /*      $NetBSD: i128.c,v 1.2 2007/10/19 11:59:52 ad Exp $ */
   2
   3 /*-
   4  * Copyright (c) 2007 Michael Lorenz
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  26  * POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __KERNEL_RCSID(0, "$NetBSD: i128.c,v 1.2 2007/10/19 11:59:52 ad Exp $");
  31
  32 #include <sys/param.h>
  33 #include <sys/systm.h>
  34 #include <sys/buf.h>
  35 #include <sys/device.h>
  36 #include <sys/conf.h>
  37
  38 #include <sys/bus.h>
  39 #include <machine/autoconf.h>
  40
  41 #include <dev/ic/i128reg.h>
  42 #include <dev/ic/i128var.h>
  43
  44 void
  45 i128_init(bus_space_tag_t tag, bus_space_handle_t regh, int stride, int depth)
  46 {
  47         /* initialize the i128's blitter */
  48         switch (depth) {
  49                 case 8:
  50                         bus_space_write_4(tag, regh, BUF_CTRL, BC_PSIZ_8B);
  51                         break;
  52                 case 16:
  53                         bus_space_write_4(tag, regh, BUF_CTRL, BC_PSIZ_16B);
  54                         break;
  55                 case 32:
  56                         bus_space_write_4(tag, regh, BUF_CTRL, BC_PSIZ_32B);
  57                         break;
  58                 default:
  59                         aprint_error("i128: unsupported colour depth (%d)\n",
  60                             depth);
  61                         return;
  62         }
  63
  64         bus_space_write_4(tag, regh, DE_PGE, 0);
  65         bus_space_write_4(tag, regh, DE_SORG, 0);
  66         bus_space_write_4(tag, regh, DE_DORG, 0);
  67         bus_space_write_4(tag, regh, DE_MSRC, 0);
  68         bus_space_write_4(tag, regh, DE_WKEY, 0);
  69         bus_space_write_4(tag, regh, DE_SPTCH, stride);
  70         bus_space_write_4(tag, regh, DE_DPTCH, stride);
  71         bus_space_write_4(tag, regh, RMSK, 0);
  72         bus_space_write_4(tag, regh, XY4_ZM, ZOOM_NONE);
  73         bus_space_write_4(tag, regh, LPAT, 0xffffffff);
  74         bus_space_write_4(tag, regh, ACNTRL, 0);
  75         bus_space_write_4(tag, regh, INTM, 3);
  76         bus_space_write_4(tag, regh, CLPTL, 0x00000000);
  77         bus_space_write_4(tag, regh, CLPBR, 0x1fff0fff);
  78         bus_space_write_4(tag, regh, MASK, 0xffffffff);
  79 }
  80
  81 void
  82 i128_bitblt(bus_space_tag_t tag, bus_space_handle_t regh, int xs, int ys,
  83     int xd, int yd, int wi, int he, int rop)
  84 {
  85         int dir = 0;
  86
  87         if (xs < xd) {
  88                 dir |= DIR_RL;
  89                 xs += wi - 1;
  90                 xd += wi - 1;
  91         }
  92         if (ys < yd) {
  93                 dir |= DIR_BT;
  94                 ys += he - 1;
  95                 yd += he - 1;
  96         }
  97
  98         I128_READY(tag, regh);
  99         bus_space_write_4(tag, regh, CMD,
 100             (rop & 0xff) << 8 | CO_BITBLT);
 101         bus_space_write_4(tag, regh, XY3_DIR, dir);
 102         bus_space_write_4(tag, regh, XY2_WH, (wi << 16) | he);
 103         bus_space_write_4(tag, regh, XY0_SRC, (xs << 16) | ys);
 104         bus_space_write_4(tag, regh, XY1_DST, (xd << 16) | yd);
 105         I128_DONE(tag, regh);
 106 }
 107
 108 void
 109 i128_rectfill(bus_space_tag_t tag, bus_space_handle_t regh, int x, int y,
 110     int wi, int he, uint32_t color)
 111 {
 112
 113         I128_READY(tag, regh);
 114         bus_space_write_4(tag, regh, CMD,
 115             CS_SOLID << 16 | (CR_COPY) << 8 | CO_BITBLT);
 116         bus_space_write_4(tag, regh, FORE, color);
 117         bus_space_write_4(tag, regh, XY3_DIR, 0);
 118         bus_space_write_4(tag, regh, XY2_WH, (wi << 16) | he);
 119         bus_space_write_4(tag, regh, XY0_SRC, 0);
 120         bus_space_write_4(tag, regh, XY1_DST, (x << 16) | y);
 121         I128_DONE(tag, regh);
 122 }