1 /* $NetBSD: ite_rh.c,v 1.13 2009/10/26 19:16:54 cegger Exp $ */ 2 3 /* 4 * Copyright (c) 1994 Markus Wild 5 * Copyright (c) 1994 Lutz Vieweg 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Lutz Vieweg. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 #include "opt_retina.h" 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: ite_rh.c,v 1.13 2009/10/26 19:16:54 cegger Exp $"); 37 38 #include "grfrh.h" 39 #if NGRFRH > 0 40 41 #include <sys/param.h> 42 #include <sys/conf.h> 43 #include <sys/proc.h> 44 #include <sys/device.h> 45 #include <sys/ioctl.h> 46 #include <sys/tty.h> 47 #include <sys/systm.h> 48 #include <dev/cons.h> 49 #include <machine/cpu.h> 50 #include <amiga/amiga/device.h> 51 #include <amiga/dev/grfioctl.h> 52 #include <amiga/dev/grfvar.h> 53 #include <amiga/dev/grf_rhreg.h> 54 #include <amiga/dev/itevar.h> 55 56 #ifdef RETINA_SPEED_HACK 57 static void screen_up(struct ite_softc *, int, int, int); 58 static void screen_down(struct ite_softc *, int, int, int); 59 #endif 60 61 /* 62 * grfrh_cnprobe is called when the console is being initialized 63 * i.e. very early. grfconfig() has been called, so this implies 64 * that rt_init() was called. If we are functioning rh_inited 65 * will be true. 66 */ 67 int 68 grfrh_cnprobe(void) 69 { 70 static int done; 71 int rv; 72 73 if (done == 0) 74 rv = CN_INTERNAL; 75 else 76 rv = CN_NORMAL; 77 done = 1; 78 return(rv); 79 } 80 81 82 void 83 grfrh_iteinit(struct grf_softc *gp) 84 { 85 gp->g_iteinit = rh_init; 86 gp->g_itedeinit = rh_deinit; 87 gp->g_iteclear = rh_clear; 88 gp->g_iteputc = rh_putc; 89 gp->g_itescroll = rh_scroll; 90 gp->g_itecursor = rh_cursor; 91 } 92 93 94 void 95 rh_init(struct ite_softc *ip) 96 { 97 struct MonDef *md; 98 99 #if 0 /* Not in ite_rt.c - DC */ 100 if (ip->grf == 0) 101 ip->grf = &grf_softc[ip - ite_softc]; 102 #endif 103 104 ip->priv = ip->grf->g_data; 105 md = (struct MonDef *) ip->priv; 106 107 ip->cols = md->TX; 108 ip->rows = md->TY; 109 } 110 111 112 void 113 rh_cursor(struct ite_softc *ip, int flag) 114 { 115 #if 0 116 volatile u_char *ba = ip->grf->g_regkva; 117 #endif 118 119 if (flag == START_CURSOROPT || flag == END_CURSOROPT) 120 return; 121 122 if (flag == ERASE_CURSOR) { 123 #if 0 124 /* disable cursor */ 125 WCrt (ba, CRT_ID_CURSOR_START, 126 RCrt (ba, CRT_ID_CURSOR_START) | 0x20); 127 #endif 128 } else { 129 int pos = ip->curx + ip->cury * ip->cols; 130 #if 0 131 /* make sure to enable cursor */ 132 WCrt (ba, CRT_ID_CURSOR_START, 133 RCrt (ba, CRT_ID_CURSOR_START) & ~0x20); 134 #endif 135 136 /* and position it */ 137 RZ3SetCursorPos (ip->grf, pos); 138 139 ip->cursorx = ip->curx; 140 ip->cursory = ip->cury; 141 } 142 } 143 144 145 #ifdef RETINA_SPEED_HACK 146 static void 147 screen_up(struct ite_softc *ip, int top, int bottom, int lines) 148 { 149 150 /* do some bounds-checking here.. */ 151 if (top >= bottom) 152 return; 153 154 if (top + lines >= bottom) { 155 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 156 return; 157 } 158 159 RZ3AlphaCopy(ip->grf, 0, top+lines, 0, top, ip->cols, bottom-top-lines+1); 160 RZ3AlphaErase(ip->grf, 0, bottom - lines + 1, ip->cols, lines); 161 } 162 163 164 static void 165 screen_down (struct ite_softc *ip, int top, int bottom, int lines) 166 { 167 168 /* do some bounds-checking here.. */ 169 if (top >= bottom) 170 return; 171 172 if (top + lines >= bottom) { 173 RZ3AlphaErase(ip->grf, 0, top, bottom - top, ip->cols); 174 return; 175 } 176 177 RZ3AlphaCopy(ip->grf, 0, top, 0, top+lines, ip->cols, bottom-top-lines+1); 178 RZ3AlphaErase(ip->grf, 0, top, ip->cols, lines); 179 } 180 #endif /* RETINA_SPEED_HACK */ 181 182 183 void 184 rh_deinit(struct ite_softc *ip) 185 { 186 ip->flags &= ~ITE_INITED; 187 } 188 189 190 void 191 rh_putc(struct ite_softc *ip, int c, int dy, int dx, int mode) 192 { 193 volatile u_char * fb = ip->grf->g_fbkva; 194 register u_char attr; 195 196 attr = (mode & ATTR_INV) ? 0x21 : 0x10; 197 if (mode & ATTR_UL) attr = 0x01; /* ???????? */ 198 if (mode & ATTR_BOLD) attr |= 0x08; 199 if (mode & ATTR_BLINK) attr |= 0x80; 200 201 fb += 4 * (dy * ip->cols + dx); 202 *fb++ = c; *fb = attr; 203 } 204 205 206 void 207 rh_clear(struct ite_softc *ip, int sy, int sx, int h, int w) 208 { 209 RZ3AlphaErase (ip->grf, sx, sy, w, h); 210 } 211 212 213 /* 214 * RETINA_SPEED_HACK code seems to work on some boards and on others 215 * it causes text to smear horizontally 216 */ 217 void 218 rh_scroll(struct ite_softc *ip, int sy, int sx, int count, int dir) 219 { 220 #ifndef RETINA_SPEED_HACK 221 u_long *fb = (u_long *)__UNVOLATILE(ip->grf->g_fbkva); 222 #endif 223 224 rh_cursor(ip, ERASE_CURSOR); 225 226 if (dir == SCROLL_UP) { 227 #ifdef RETINA_SPEED_HACK 228 screen_up(ip, sy - count, ip->bottom_margin, count); 229 #else 230 memcpy(fb + (sy - count) * ip->cols, fb + sy * ip->cols, 231 4 * (ip->bottom_margin - sy + 1) * ip->cols); 232 rh_clear(ip, ip->bottom_margin + 1 - count, 0, count, ip->cols); 233 #endif 234 } else if (dir == SCROLL_DOWN) { 235 #ifdef RETINA_SPEED_HACK 236 screen_down(ip, sy, ip->bottom_margin, count); 237 #else 238 memcpy(fb + (sy + count) * ip->cols, fb + sy * ip->cols, 239 4 * (ip->bottom_margin - sy - count + 1) * ip->cols); 240 rh_clear(ip, sy, 0, count, ip->cols); 241 #endif 242 } else if (dir == SCROLL_RIGHT) { 243 RZ3AlphaCopy(ip->grf, sx, sy, sx + count, sy, 244 ip->cols - (sx + count), 1); 245 RZ3AlphaErase(ip->grf, sx, sy, count, 1); 246 } else { 247 RZ3AlphaCopy(ip->grf, sx + count, sy, sx, sy, 248 ip->cols - (sx + count), 1); 249 RZ3AlphaErase(ip->grf, ip->cols - count, sy, count, 1); 250 } 251 #ifndef RETINA_SPEED_HACK 252 rh_cursor(ip, !ERASE_CURSOR); 253 #endif 254 } 255 #endif /* NGRFRH */ 256