pcdisplay_subr.c revision 1.9
1 /* $NetBSD: pcdisplay_subr.c,v 1.9 1999/09/29 17:26:06 ad Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/device.h> 33 #include <machine/bus.h> 34 35 #include <dev/isa/isavar.h> 36 #include <dev/isa/isareg.h> 37 38 #include <dev/ic/mc6845reg.h> 39 #include <dev/ic/pcdisplayvar.h> 40 41 #include <dev/wscons/wsdisplayvar.h> 42 43 void 44 pcdisplay_cursor(id, on, row, col) 45 void *id; 46 int on, row, col; 47 { 48 #ifdef PCDISPLAY_SOFTCURSOR 49 struct pcdisplayscreen *scr = id; 50 bus_space_tag_t memt = scr->hdl->ph_memt; 51 bus_space_handle_t memh = scr->hdl->ph_memh; 52 int off; 53 54 /* Remove old cursor image */ 55 if (scr->cursoron) { 56 off = scr->vc_crow * scr->type->ncols + scr->vc_ccol; 57 if (scr->active) 58 bus_space_write_2(memt, memh, scr->dispoffset + off * 2, 59 scr->cursortmp); 60 else 61 scr->mem[off] = scr->cursortmp; 62 } 63 64 scr->vc_crow = row; 65 scr->vc_ccol = col; 66 67 if ((scr->cursoron = on) == 0) 68 return; 69 70 off = (scr->vc_crow * scr->type->ncols + scr->vc_ccol); 71 if (scr->active) { 72 off <<= 1; 73 scr->cursortmp = bus_space_read_2(memt, memh, 74 scr->dispoffset + off); 75 bus_space_write_2(memt, memh, scr->dispoffset + off, 76 scr->cursortmp ^ 0x7700); 77 } else { 78 scr->cursortmp = scr->mem[off]; 79 scr->mem[off] = scr->cursortmp ^ 0x7700; 80 } 81 #else /* PCDISPLAY_SOFTCURSOR */ 82 struct pcdisplayscreen *scr = id; 83 int pos; 84 85 scr->vc_crow = row; 86 scr->vc_ccol = col; 87 scr->cursoron = on; 88 89 if (scr->active) { 90 if (!on) 91 pos = 0x1010; 92 else 93 pos = scr->dispoffset / 2 94 + row * scr->type->ncols + col; 95 96 pcdisplay_6845_write(scr->hdl, cursorh, pos >> 8); 97 pcdisplay_6845_write(scr->hdl, cursorl, pos); 98 } 99 #endif /* PCDISPLAY_SOFTCURSOR */ 100 } 101 102 #if 0 103 unsigned int 104 pcdisplay_mapchar_simple(id, uni) 105 void *id; 106 int uni; 107 { 108 if (uni < 128) 109 return (uni); 110 111 return (1); /* XXX ??? smiley */ 112 } 113 #endif 114 115 void 116 pcdisplay_putchar(id, row, col, c, attr) 117 void *id; 118 int row, col; 119 u_int c; 120 long attr; 121 { 122 struct pcdisplayscreen *scr = id; 123 bus_space_tag_t memt = scr->hdl->ph_memt; 124 bus_space_handle_t memh = scr->hdl->ph_memh; 125 int off; 126 127 off = row * scr->type->ncols + col; 128 129 if (scr->active) 130 bus_space_write_2(memt, memh, scr->dispoffset + off * 2, 131 c | (attr << 8)); 132 else 133 scr->mem[off] = c | (attr << 8); 134 } 135 136 void 137 pcdisplay_copycols(id, row, srccol, dstcol, ncols) 138 void *id; 139 int row, srccol, dstcol, ncols; 140 { 141 struct pcdisplayscreen *scr = id; 142 bus_space_tag_t memt = scr->hdl->ph_memt; 143 bus_space_handle_t memh = scr->hdl->ph_memh; 144 bus_size_t srcoff, dstoff; 145 146 srcoff = dstoff = row * scr->type->ncols; 147 srcoff += srccol; 148 dstoff += dstcol; 149 150 if (scr->active) 151 bus_space_copy_region_2(memt, memh, 152 scr->dispoffset + srcoff * 2, 153 memh, scr->dispoffset + dstoff * 2, 154 ncols); 155 else 156 bcopy(&scr->mem[srcoff], &scr->mem[dstoff], ncols * 2); 157 } 158 159 void 160 pcdisplay_erasecols(id, row, startcol, ncols, fillattr) 161 void *id; 162 int row, startcol, ncols; 163 long fillattr; 164 { 165 struct pcdisplayscreen *scr = id; 166 bus_space_tag_t memt = scr->hdl->ph_memt; 167 bus_space_handle_t memh = scr->hdl->ph_memh; 168 bus_size_t off; 169 u_int16_t val; 170 int i; 171 172 off = row * scr->type->ncols + startcol; 173 174 val = (fillattr << 8) | ' '; 175 176 if (scr->active) 177 bus_space_set_region_2(memt, memh, scr->dispoffset + off * 2, 178 val, ncols); 179 else 180 for (i = 0; i < ncols; i++) 181 scr->mem[off + i] = val; 182 } 183 184 void 185 pcdisplay_copyrows(id, srcrow, dstrow, nrows) 186 void *id; 187 int srcrow, dstrow, nrows; 188 { 189 struct pcdisplayscreen *scr = id; 190 bus_space_tag_t memt = scr->hdl->ph_memt; 191 bus_space_handle_t memh = scr->hdl->ph_memh; 192 int ncols = scr->type->ncols; 193 bus_size_t srcoff, dstoff; 194 195 srcoff = srcrow * ncols + 0; 196 dstoff = dstrow * ncols + 0; 197 198 if (scr->active) 199 bus_space_copy_region_2(memt, memh, 200 scr->dispoffset + srcoff * 2, 201 memh, scr->dispoffset + dstoff * 2, 202 nrows * ncols); 203 else 204 bcopy(&scr->mem[srcoff], &scr->mem[dstoff], 205 nrows * ncols * 2); 206 } 207 208 void 209 pcdisplay_eraserows(id, startrow, nrows, fillattr) 210 void *id; 211 int startrow, nrows; 212 long fillattr; 213 { 214 struct pcdisplayscreen *scr = id; 215 bus_space_tag_t memt = scr->hdl->ph_memt; 216 bus_space_handle_t memh = scr->hdl->ph_memh; 217 bus_size_t off, count; 218 u_int16_t val; 219 int i; 220 221 off = startrow * scr->type->ncols; 222 count = nrows * scr->type->ncols; 223 224 val = (fillattr << 8) | ' '; 225 226 if (scr->active) 227 bus_space_set_region_2(memt, memh, scr->dispoffset + off * 2, 228 val, count); 229 else 230 for (i = 0; i < count; i++) 231 scr->mem[off + i] = val; 232 } 233
Indexes created Mon Sep 22 13:09:51 GMT 2025