pcdisplay_subr.c revision 1.4
1 /* $NetBSD: pcdisplay_subr.c,v 1.4 1998/06/20 21:55:05 drochner 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 struct pcdisplayscreen *scr = id; 49 int pos; 50 51 #if 0 52 printf("pcdisplay_cursor: %d %d\n", row, col); 53 #endif 54 scr->vc_crow = row; 55 scr->vc_ccol = col; 56 scr->cursoron = on; 57 58 if (scr->active) { 59 if (!on) { 60 /* XXX disable cursor how??? */ 61 row = col = -1; 62 } 63 64 pos = row * scr->type->ncols + col; 65 66 pcdisplay_6845_write(scr->hdl, cursorh, pos >> 8); 67 pcdisplay_6845_write(scr->hdl, cursorl, pos); 68 } 69 } 70 71 static u_char iso2ibm437[] = 72 { 73 0, 0, 0, 0, 0, 0, 0, 0, 74 0, 0, 0, 0, 0, 0, 0, 0, 75 0, 0, 0, 0, 0, 0, 0, 0, 76 0, 0, 0, 0, 0, 0, 0, 0, 77 0xff, 0xad, 0x9b, 0x9c, 0, 0x9d, 0, 0x40, 78 0x6f, 0x63, 0x61, 0xae, 0, 0, 0, 0, 79 0xf8, 0xf1, 0xfd, 0x33, 0, 0xe6, 0, 0xfa, 80 0, 0x31, 0x6f, 0xaf, 0xac, 0xab, 0, 0xa8, 81 0x41, 0x41, 0x41, 0x41, 0x8e, 0x8f, 0x92, 0x80, 82 0x45, 0x90, 0x45, 0x45, 0x49, 0x49, 0x49, 0x49, 83 0x81, 0xa5, 0x4f, 0x4f, 0x4f, 0x4f, 0x99, 0x4f, 84 0x4f, 0x55, 0x55, 0x55, 0x9a, 0x59, 0, 0xe1, 85 0x85, 0xa0, 0x83, 0x61, 0x84, 0x86, 0x91, 0x87, 86 0x8a, 0x82, 0x88, 0x89, 0x8d, 0xa1, 0x8c, 0x8b, 87 0, 0xa4, 0x95, 0xa2, 0x93, 0x6f, 0x94, 0x6f, 88 0x6f, 0x97, 0xa3, 0x96, 0x81, 0x98, 0, 0 89 }; 90 91 void 92 pcdisplay_putchar(id, row, col, c, attr) 93 void *id; 94 int row, col; 95 u_int c; 96 long attr; 97 { 98 struct pcdisplayscreen *scr = id; 99 bus_space_tag_t memt = scr->hdl->ph_memt; 100 bus_space_handle_t memh = scr->hdl->ph_memh; 101 u_char dc; 102 int off; 103 104 if (c < 128) 105 dc = c; 106 else if (c < 256) 107 dc = iso2ibm437[c - 128]; 108 else 109 return; 110 111 off = row * scr->type->ncols + col; 112 113 if (scr->active) 114 bus_space_write_2(memt, memh, off * 2, 115 dc | (attr << 8)); 116 else 117 scr->mem[off] = dc | (attr << 8); 118 } 119 120 void 121 pcdisplay_copycols(id, row, srccol, dstcol, ncols) 122 void *id; 123 int row, srccol, dstcol, ncols; 124 { 125 struct pcdisplayscreen *scr = id; 126 bus_space_tag_t memt = scr->hdl->ph_memt; 127 bus_space_handle_t memh = scr->hdl->ph_memh; 128 bus_size_t srcoff, dstoff; 129 130 srcoff = dstoff = row * scr->type->ncols; 131 srcoff += srccol; 132 dstoff += dstcol; 133 134 if (scr->active) 135 bus_space_copy_region_2(memt, memh, srcoff * 2, 136 memh, dstoff * 2, ncols); 137 else 138 bcopy(&scr->mem[srcoff], &scr->mem[dstoff], ncols * 2); 139 } 140 141 void 142 pcdisplay_erasecols(id, row, startcol, ncols, fillattr) 143 void *id; 144 int row, startcol, ncols; 145 long fillattr; 146 { 147 struct pcdisplayscreen *scr = id; 148 bus_space_tag_t memt = scr->hdl->ph_memt; 149 bus_space_handle_t memh = scr->hdl->ph_memh; 150 bus_size_t off; 151 u_int16_t val; 152 int i; 153 154 off = row * scr->type->ncols + startcol; 155 156 val = (fillattr << 8) | ' '; 157 158 if (scr->active) 159 bus_space_set_region_2(memt, memh, off * 2, val, ncols); 160 else 161 for (i = 0; i < ncols; i++) 162 scr->mem[off + i] = val; 163 } 164 165 void 166 pcdisplay_copyrows(id, srcrow, dstrow, nrows) 167 void *id; 168 int srcrow, dstrow, nrows; 169 { 170 struct pcdisplayscreen *scr = id; 171 bus_space_tag_t memt = scr->hdl->ph_memt; 172 bus_space_handle_t memh = scr->hdl->ph_memh; 173 int ncols = scr->type->ncols; 174 bus_size_t srcoff, dstoff; 175 176 srcoff = srcrow * ncols + 0; 177 dstoff = dstrow * ncols + 0; 178 179 if (scr->active) 180 bus_space_copy_region_2(memt, memh, srcoff * 2, 181 memh, dstoff * 2, nrows * ncols); 182 else 183 bcopy(&scr->mem[srcoff], &scr->mem[dstoff], 184 nrows * ncols * 2); 185 } 186 187 void 188 pcdisplay_eraserows(id, startrow, nrows, fillattr) 189 void *id; 190 int startrow, nrows; 191 long fillattr; 192 { 193 struct pcdisplayscreen *scr = id; 194 bus_space_tag_t memt = scr->hdl->ph_memt; 195 bus_space_handle_t memh = scr->hdl->ph_memh; 196 bus_size_t off, count; 197 u_int16_t val; 198 int i; 199 200 off = startrow * scr->type->ncols; 201 count = nrows * scr->type->ncols; 202 203 val = (fillattr << 8) | ' '; 204 205 if (scr->active) 206 bus_space_set_region_2(memt, memh, off * 2, val, count); 207 else 208 for (i = 0; i < count; i++) 209 scr->mem[off + i] = val; 210 } 211
Indexes created Wed Sep 24 02:09:48 GMT 2025