wsemul_dumb.c revision 1.5
1 /* $NetBSD: wsemul_dumb.c,v 1.5 1998/06/20 21:52:50 drochner Exp $ */ 2 3 /* 4 * Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Christopher G. Demetriou 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 static const char _copyright[] __attribute__ ((unused)) = 34 "Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved."; 35 static const char _rcsid[] __attribute__ ((unused)) = 36 "$NetBSD: wsemul_dumb.c,v 1.5 1998/06/20 21:52:50 drochner Exp $"; 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/time.h> 41 #include <sys/malloc.h> 42 #include <sys/fcntl.h> 43 44 #include <dev/wscons/wsconsio.h> 45 #include <dev/wscons/wsdisplayvar.h> 46 #include <dev/wscons/wsemulvar.h> 47 #include <dev/wscons/ascii.h> 48 49 void *wsemul_dumb_cnattach __P((const struct wsscreen_descr *, void *, 50 int, int, long)); 51 void *wsemul_dumb_attach __P((int console, const struct wsscreen_descr *, 52 void *, int, int, void *, long)); 53 void wsemul_dumb_output __P((void *cookie, const u_char *data, u_int count, 54 int)); 55 int wsemul_dumb_translate __P((void *cookie, keysym_t, char **)); 56 void wsemul_dumb_detach __P((void *cookie, u_int *crowp, u_int *ccolp)); 57 58 const struct wsemul_ops wsemul_dumb_ops = { 59 "dumb", 60 wsemul_dumb_cnattach, 61 wsemul_dumb_attach, 62 wsemul_dumb_output, 63 wsemul_dumb_translate, 64 wsemul_dumb_detach, 65 }; 66 67 struct wsemul_dumb_emuldata { 68 const struct wsdisplay_emulops *emulops; 69 void *emulcookie; 70 void *cbcookie; 71 u_int nrows, ncols, crow, ccol; 72 long defattr; 73 }; 74 75 struct wsemul_dumb_emuldata wsemul_dumb_console_emuldata; 76 77 void * 78 wsemul_dumb_cnattach(type, cookie, ccol, crow, defattr) 79 const struct wsscreen_descr *type; 80 void *cookie; 81 int ccol, crow; 82 long defattr; 83 { 84 struct wsemul_dumb_emuldata *edp; 85 86 edp = &wsemul_dumb_console_emuldata; 87 88 edp->emulops = type->textops; 89 edp->emulcookie = cookie; 90 edp->nrows = type->nrows; 91 edp->ncols = type->ncols; 92 edp->crow = crow; 93 edp->ccol = ccol; 94 edp->defattr = defattr; 95 edp->cbcookie = NULL; 96 97 return (edp); 98 } 99 100 void * 101 wsemul_dumb_attach(console, type, cookie, ccol, crow, cbcookie, defattr) 102 int console; 103 const struct wsscreen_descr *type; 104 void *cookie; 105 int ccol, crow; 106 void *cbcookie; 107 long defattr; 108 { 109 struct wsemul_dumb_emuldata *edp; 110 111 if (console) 112 edp = &wsemul_dumb_console_emuldata; 113 else { 114 edp = malloc(sizeof *edp, M_DEVBUF, M_WAITOK); 115 116 edp->emulops = type->textops; 117 edp->emulcookie = cookie; 118 edp->nrows = type->nrows; 119 edp->ncols = type->ncols; 120 edp->crow = crow; 121 edp->ccol = ccol; 122 edp->defattr = defattr; 123 } 124 125 edp->cbcookie = cbcookie; 126 127 return (edp); 128 } 129 130 void 131 wsemul_dumb_output(cookie, data, count, kernel) 132 void *cookie; 133 const u_char *data; 134 u_int count; 135 int kernel; /* ignored */ 136 { 137 struct wsemul_dumb_emuldata *edp = cookie; 138 u_char c; 139 int n; 140 141 /* XXX */ 142 (*edp->emulops->cursor)(edp->emulcookie, 0, edp->crow, edp->ccol); 143 while (count-- > 0) { 144 c = *data++; 145 switch (c) { 146 case ASCII_BEL: 147 wsdisplay_emulbell(edp->cbcookie); 148 break; 149 150 case ASCII_BS: 151 if (edp->ccol > 0) 152 edp->ccol--; 153 break; 154 155 case ASCII_CR: 156 edp->ccol = 0; 157 break; 158 159 case ASCII_HT: 160 n = min(8 - (edp->ccol & 7), 161 edp->ncols - edp->ccol - 1); 162 (*edp->emulops->erasecols)(edp->emulcookie, 163 edp->crow, edp->ccol, n, edp->defattr); 164 edp->ccol += n; 165 break; 166 167 case ASCII_FF: 168 (*edp->emulops->eraserows)(edp->emulcookie, 0, 169 edp->nrows, edp->defattr); 170 edp->ccol = 0; 171 edp->crow = 0; 172 break; 173 174 case ASCII_VT: 175 if (edp->crow > 0) 176 edp->crow--; 177 break; 178 179 default: 180 (*edp->emulops->putchar)(edp->emulcookie, edp->crow, 181 edp->ccol, c, edp->defattr); 182 edp->ccol++; 183 184 /* if cur col is still on cur line, done. */ 185 if (edp->ccol < edp->ncols) 186 break; 187 188 /* wrap the column around. */ 189 edp->ccol = 0; 190 191 /* FALLTHRU */ 192 193 case ASCII_LF: 194 /* if the cur line isn't the last, incr and leave. */ 195 if (edp->crow < edp->nrows - 1) { 196 edp->crow++; 197 break; 198 } 199 n = 1; /* number of lines to scroll */ 200 (*edp->emulops->copyrows)(edp->emulcookie, n, 0, 201 edp->nrows - n); 202 (*edp->emulops->eraserows)(edp->emulcookie, 203 edp->nrows - n, n, edp->defattr); 204 edp->crow -= n - 1; 205 break; 206 } 207 } 208 /* XXX */ 209 (*edp->emulops->cursor)(edp->emulcookie, 1, edp->crow, edp->ccol); 210 } 211 212 int 213 wsemul_dumb_translate(cookie, in, out) 214 void *cookie; 215 keysym_t in; 216 char **out; 217 { 218 return (0); 219 } 220 221 void 222 wsemul_dumb_detach(cookie, crowp, ccolp) 223 void *cookie; 224 u_int *crowp, *ccolp; 225 { 226 struct wsemul_dumb_emuldata *edp = cookie; 227 228 *crowp = edp->crow; 229 *ccolp = edp->ccol; 230 if (edp != &wsemul_dumb_console_emuldata) 231 free(edp, M_DEVBUF); 232 } 233
Indexes created Sat Sep 27 22:09:54 GMT 2025