1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 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 as 12 * the first lines of this file unmodified. 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 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 */ 29 30 #include <sys/cdefs.h> 31 #include "opt_syscons.h" 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/malloc.h> 36 #include <sys/fbio.h> 37 #include <sys/consio.h> 38 39 #include <machine/md_var.h> 40 #include <machine/bus.h> 41 42 #include <dev/fb/fbreg.h> 43 #include <dev/syscons/syscons.h> 44 45 #define vtb_wrap(vtb, at, offset) \ 46 (((at) + (offset) + (vtb)->vtb_size)%(vtb)->vtb_size) 47 48 void 49 sc_vtb_init(sc_vtb_t *vtb, int type, int cols, int rows, void *buf, int wait) 50 { 51 vtb->vtb_flags = 0; 52 vtb->vtb_type = type; 53 vtb->vtb_cols = cols; 54 vtb->vtb_rows = rows; 55 vtb->vtb_size = cols*rows; 56 vtb->vtb_buffer = 0; 57 vtb->vtb_tail = 0; 58 59 switch (type) { 60 case VTB_MEMORY: 61 case VTB_RINGBUFFER: 62 if ((buf == NULL) && (cols*rows != 0)) { 63 vtb->vtb_buffer = 64 (vm_offset_t)malloc(cols*rows*sizeof(u_int16_t), 65 M_DEVBUF, 66 (wait) ? M_WAITOK : M_NOWAIT); 67 if (vtb->vtb_buffer != 0) { 68 bzero((void *)sc_vtb_pointer(vtb, 0), 69 cols*rows*sizeof(u_int16_t)); 70 vtb->vtb_flags |= VTB_ALLOCED; 71 } 72 } else { 73 vtb->vtb_buffer = (vm_offset_t)buf; 74 } 75 vtb->vtb_flags |= VTB_VALID; 76 break; 77 case VTB_FRAMEBUFFER: 78 vtb->vtb_buffer = (vm_offset_t)buf; 79 vtb->vtb_flags |= VTB_VALID; 80 break; 81 default: 82 break; 83 } 84 } 85 86 void 87 sc_vtb_destroy(sc_vtb_t *vtb) 88 { 89 vm_offset_t p; 90 91 vtb->vtb_cols = 0; 92 vtb->vtb_rows = 0; 93 vtb->vtb_size = 0; 94 vtb->vtb_tail = 0; 95 96 p = vtb->vtb_buffer; 97 vtb->vtb_buffer = 0; 98 switch (vtb->vtb_type) { 99 case VTB_MEMORY: 100 case VTB_RINGBUFFER: 101 if ((vtb->vtb_flags & VTB_ALLOCED) && (p != 0)) 102 free((void *)p, M_DEVBUF); 103 break; 104 default: 105 break; 106 } 107 vtb->vtb_flags = 0; 108 vtb->vtb_type = VTB_INVALID; 109 } 110 111 size_t 112 sc_vtb_size(int cols, int rows) 113 { 114 return (size_t)(cols*rows*sizeof(u_int16_t)); 115 } 116 117 int 118 sc_vtb_getc(sc_vtb_t *vtb, int at) 119 { 120 if (vtb->vtb_type == VTB_FRAMEBUFFER) 121 return (readw(sc_vtb_pointer(vtb, at)) & 0x00ff); 122 else 123 return (*(u_int16_t *)sc_vtb_pointer(vtb, at) & 0x00ff); 124 } 125 126 int 127 sc_vtb_geta(sc_vtb_t *vtb, int at) 128 { 129 if (vtb->vtb_type == VTB_FRAMEBUFFER) 130 return (readw(sc_vtb_pointer(vtb, at)) & 0xff00); 131 else 132 return (*(u_int16_t *)sc_vtb_pointer(vtb, at) & 0xff00); 133 } 134 135 void 136 sc_vtb_putc(sc_vtb_t *vtb, int at, int c, int a) 137 { 138 if (vtb->vtb_type == VTB_FRAMEBUFFER) 139 writew(sc_vtb_pointer(vtb, at), a | c); 140 else 141 *(u_int16_t *)sc_vtb_pointer(vtb, at) = a | c; 142 } 143 144 vm_offset_t 145 sc_vtb_putchar(sc_vtb_t *vtb, vm_offset_t p, int c, int a) 146 { 147 if (vtb->vtb_type == VTB_FRAMEBUFFER) 148 writew(p, a | c); 149 else 150 *(u_int16_t *)p = a | c; 151 return (p + sizeof(u_int16_t)); 152 } 153 154 vm_offset_t 155 sc_vtb_pointer(sc_vtb_t *vtb, int at) 156 { 157 return (vtb->vtb_buffer + sizeof(u_int16_t)*(at)); 158 } 159 160 int 161 sc_vtb_pos(sc_vtb_t *vtb, int pos, int offset) 162 { 163 return ((pos + offset + vtb->vtb_size)%vtb->vtb_size); 164 } 165 166 void 167 sc_vtb_clear(sc_vtb_t *vtb, int c, int attr) 168 { 169 if (vtb->vtb_type == VTB_FRAMEBUFFER) 170 fillw_io(attr | c, sc_vtb_pointer(vtb, 0), vtb->vtb_size); 171 else 172 fillw(attr | c, (void *)sc_vtb_pointer(vtb, 0), vtb->vtb_size); 173 } 174 175 void 176 sc_vtb_copy(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int to, int count) 177 { 178 /* XXX if both are VTB_VRAMEBUFFER... */ 179 if (vtb2->vtb_type == VTB_FRAMEBUFFER) 180 bcopy_toio(sc_vtb_pointer(vtb1, from), 181 sc_vtb_pointer(vtb2, to), 182 count*sizeof(u_int16_t)); 183 else if (vtb1->vtb_type == VTB_FRAMEBUFFER) 184 bcopy_fromio(sc_vtb_pointer(vtb1, from), 185 sc_vtb_pointer(vtb2, to), 186 count*sizeof(u_int16_t)); 187 else 188 bcopy((void *)sc_vtb_pointer(vtb1, from), 189 (void *)sc_vtb_pointer(vtb2, to), 190 count*sizeof(u_int16_t)); 191 } 192 193 void 194 sc_vtb_append(sc_vtb_t *vtb1, int from, sc_vtb_t *vtb2, int count) 195 { 196 int len; 197 198 if (vtb2->vtb_type != VTB_RINGBUFFER) 199 return; 200 201 while (count > 0) { 202 len = imin(count, vtb2->vtb_size - vtb2->vtb_tail); 203 if (vtb1->vtb_type == VTB_FRAMEBUFFER) 204 bcopy_fromio(sc_vtb_pointer(vtb1, from), 205 sc_vtb_pointer(vtb2, vtb2->vtb_tail), 206 len*sizeof(u_int16_t)); 207 else 208 bcopy((void *)sc_vtb_pointer(vtb1, from), 209 (void *)sc_vtb_pointer(vtb2, vtb2->vtb_tail), 210 len*sizeof(u_int16_t)); 211 from += len; 212 count -= len; 213 vtb2->vtb_tail = vtb_wrap(vtb2, vtb2->vtb_tail, len); 214 } 215 } 216 217 void 218 sc_vtb_seek(sc_vtb_t *vtb, int pos) 219 { 220 vtb->vtb_tail = pos%vtb->vtb_size; 221 } 222 223 void 224 sc_vtb_erase(sc_vtb_t *vtb, int at, int count, int c, int attr) 225 { 226 if (at + count > vtb->vtb_size) 227 count = vtb->vtb_size - at; 228 if (vtb->vtb_type == VTB_FRAMEBUFFER) 229 fillw_io(attr | c, sc_vtb_pointer(vtb, at), count); 230 else 231 fillw(attr | c, (void *)sc_vtb_pointer(vtb, at), count); 232 } 233 234 void 235 sc_vtb_move(sc_vtb_t *vtb, int from, int to, int count) 236 { 237 if (from + count > vtb->vtb_size) 238 count = vtb->vtb_size - from; 239 if (to + count > vtb->vtb_size) 240 count = vtb->vtb_size - to; 241 if (count <= 0) 242 return; 243 if (vtb->vtb_type == VTB_FRAMEBUFFER) 244 bcopy_io(sc_vtb_pointer(vtb, from), 245 sc_vtb_pointer(vtb, to), count*sizeof(u_int16_t)); 246 else 247 bcopy((void *)sc_vtb_pointer(vtb, from), 248 (void *)sc_vtb_pointer(vtb, to), count*sizeof(u_int16_t)); 249 } 250 251 void 252 sc_vtb_delete(sc_vtb_t *vtb, int at, int count, int c, int attr) 253 { 254 int len; 255 256 if (at + count > vtb->vtb_size) 257 count = vtb->vtb_size - at; 258 len = vtb->vtb_size - at - count; 259 if (len > 0) { 260 if (vtb->vtb_type == VTB_FRAMEBUFFER) 261 bcopy_io(sc_vtb_pointer(vtb, at + count), 262 sc_vtb_pointer(vtb, at), 263 len*sizeof(u_int16_t)); 264 else 265 bcopy((void *)sc_vtb_pointer(vtb, at + count), 266 (void *)sc_vtb_pointer(vtb, at), 267 len*sizeof(u_int16_t)); 268 } 269 if (vtb->vtb_type == VTB_FRAMEBUFFER) 270 fillw_io(attr | c, sc_vtb_pointer(vtb, at + len), 271 vtb->vtb_size - at - len); 272 else 273 fillw(attr | c, (void *)sc_vtb_pointer(vtb, at + len), 274 vtb->vtb_size - at - len); 275 } 276 277 void 278 sc_vtb_ins(sc_vtb_t *vtb, int at, int count, int c, int attr) 279 { 280 if (at + count > vtb->vtb_size) 281 count = vtb->vtb_size - at; 282 else { 283 if (vtb->vtb_type == VTB_FRAMEBUFFER) 284 bcopy_io(sc_vtb_pointer(vtb, at), 285 sc_vtb_pointer(vtb, at + count), 286 (vtb->vtb_size - at - count)*sizeof(u_int16_t)); 287 else 288 bcopy((void *)sc_vtb_pointer(vtb, at), 289 (void *)sc_vtb_pointer(vtb, at + count), 290 (vtb->vtb_size - at - count)*sizeof(u_int16_t)); 291 } 292 if (vtb->vtb_type == VTB_FRAMEBUFFER) 293 fillw_io(attr | c, sc_vtb_pointer(vtb, at), count); 294 else 295 fillw(attr | c, (void *)sc_vtb_pointer(vtb, at), count); 296 } 297